Yang Tse
12 years ago
parent
320c4eb659
commit
f454e82dc7
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#--------------------------------------------------------------------------- |
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# |
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# xc-lt-iface.m4 |
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# |
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# Copyright (c) 2013 Daniel Stenberg <daniel@haxx.se> |
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# |
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# Permission to use, copy, modify, and distribute this software for any |
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# purpose with or without fee is hereby granted, provided that the above |
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# copyright notice and this permission notice appear in all copies. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
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# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
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# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
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# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
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# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
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# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
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# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
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# |
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#--------------------------------------------------------------------------- |
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|
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# serial 1 |
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|
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|
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dnl _XC_LIBTOOL_PREAMBLE |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks some configure script options related with |
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dnl libtool and customizes its default behavior before |
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dnl libtool code is actually used in script. |
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|
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m4_define([_XC_LIBTOOL_PREAMBLE], |
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[dnl |
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# ------------------------------------ # |
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# Determine libtool default behavior # |
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# ------------------------------------ # |
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|
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# |
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# Default behavior is to enable shared and static libraries on systems |
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# where libtool knows how to build both library versions, and does not |
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# require separate configuration and build runs for each flavor. |
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# |
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|
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xc_lt_want_enable_shared='yes' |
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xc_lt_want_enable_static='yes' |
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|
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# |
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# User may have disabled shared or static libraries. |
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# |
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case "x$enable_shared" in @%:@ ( |
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xno) |
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xc_lt_want_enable_shared='no' |
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;; |
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esac |
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case "x$enable_static" in @%:@ ( |
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xno) |
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xc_lt_want_enable_static='no' |
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;; |
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esac |
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if test "x$xc_lt_want_enable_shared" = 'xno' && |
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test "x$xc_lt_want_enable_static" = 'xno'; then |
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AC_MSG_ERROR([can not disable shared and static libraries simultaneously]) |
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fi |
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|
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# |
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# Default behavior on systems that require independent configuration |
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# and build runs for shared and static is to enable shared libraries |
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# and disable static ones. On these systems option '--disable-shared' |
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# must be used in order to build a proper static library. |
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# |
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|
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if test "x$xc_lt_want_enable_shared" = 'xyes' && |
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test "x$xc_lt_want_enable_static" = 'xyes'; then |
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case $host_os in @%:@ ( |
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mingw* | pw32* | cegcc* | os2* | aix*) |
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xc_lt_want_enable_static='no' |
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;; |
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esac |
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fi |
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|
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# |
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# Make libtool aware of current shared and static library preferences |
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# taking in account that, depending on host characteristics, libtool |
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# may modify these option preferences later in this configure script. |
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# |
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|
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enable_shared=$xc_lt_want_enable_shared |
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enable_static=$xc_lt_want_enable_static |
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|
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# |
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# Default behavior is to build PIC objects for shared libraries and |
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# non-PIC objects for static libraries. |
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# |
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|
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xc_lt_want_with_pic='default' |
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|
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# |
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# User may have specified PIC preference. |
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# |
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|
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case "x$with_pic" in @%:@ (( |
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xno) |
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xc_lt_want_with_pic='no' |
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;; |
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xyes) |
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xc_lt_want_with_pic='yes' |
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;; |
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esac |
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|
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# |
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# Default behavior on some systems where building a shared library out |
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# of non-PIC compiled objects will fail with following linker error |
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# "relocation R_X86_64_32 can not be used when making a shared object" |
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# is to build PIC objects even for static libraries. This behavior may |
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# be overriden using 'configure --disable-shared --without-pic'. |
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# |
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|
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if test "x$xc_lt_want_with_pic" = 'xdefault'; then |
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case $host_cpu in @%:@ ( |
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x86_64 | amd64 | ia64) |
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case $host_os in @%:@ ( |
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linux* | freebsd*) |
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xc_lt_want_with_pic='yes' |
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;; |
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esac |
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;; |
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esac |
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fi |
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|
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# |
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# Make libtool aware of current PIC preference taking in account that, |
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# depending on host characteristics, libtool may modify PIC default |
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# behavior to fit host system idiosyncrasies later in this script. |
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# |
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|
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with_pic=$xc_lt_want_with_pic |
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dnl |
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m4_define([$0],[])dnl |
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]) |
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|
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|
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dnl _XC_LIBTOOL_BODY |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl This macro performs embedding of libtool code into |
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dnl configure script, regardless of libtool version in |
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dnl use when generating configure script. |
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|
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m4_define([_XC_LIBTOOL_BODY], |
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[dnl |
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## ----------------------- ## |
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## Start of libtool code ## |
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## ----------------------- ## |
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m4_ifdef([LT_INIT], |
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[dnl |
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LT_INIT([win32-dll]) |
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],[dnl |
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AC_LIBTOOL_WIN32_DLL |
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AC_PROG_LIBTOOL |
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])dnl |
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## --------------------- ## |
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## End of libtool code ## |
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## --------------------- ## |
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dnl |
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m4_define([$0], [])[]dnl |
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]) |
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|
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|
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dnl _XC_CHECK_LT_BUILD_LIBRARIES |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks wether libtool shared and static libraries |
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dnl are finally built depending on user input, default |
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dnl behavior and knowledge that libtool has about host |
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dnl characteristics. |
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dnl Results stored in following shell variables: |
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dnl xc_lt_build_shared |
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dnl xc_lt_build_static |
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|
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m4_define([_XC_CHECK_LT_BUILD_LIBRARIES], |
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[dnl |
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# |
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# Verify if finally libtool shared libraries will be built |
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# |
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|
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case "x$enable_shared" in @%:@ (( |
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xyes | xno) |
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xc_lt_build_shared=$enable_shared |
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;; |
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*) |
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AC_MSG_ERROR([unexpected libtool enable_shared value: $enable_shared]) |
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;; |
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esac |
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|
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# |
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# Verify if finally libtool static libraries will be built |
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# |
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|
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case "x$enable_static" in @%:@ (( |
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xyes | xno) |
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xc_lt_build_static=$enable_static |
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;; |
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*) |
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AC_MSG_ERROR([unexpected libtool enable_static value: $enable_static]) |
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;; |
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esac |
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dnl |
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m4_define([$0],[])dnl |
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]) |
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|
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|
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dnl _XC_CHECK_LT_SHLIB_USE_VERSION_INFO |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks if the -version-info linker flag must be |
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dnl provided when building libtool shared libraries. |
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dnl Result stored in xc_lt_shlib_use_version_info. |
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|
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m4_define([_XC_CHECK_LT_SHLIB_USE_VERSION_INFO], |
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[dnl |
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# |
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# Verify if libtool shared libraries should be linked using flag -version-info |
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# |
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|
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AC_MSG_CHECKING([whether to build shared libraries with -version-info]) |
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xc_lt_shlib_use_version_info='yes' |
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if test "x$version_type" = 'xnone'; then |
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xc_lt_shlib_use_version_info='no' |
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fi |
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case $host_os in @%:@ ( |
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amigaos*) |
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xc_lt_shlib_use_version_info='yes' |
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;; |
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esac |
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AC_MSG_RESULT([$xc_lt_shlib_use_version_info]) |
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dnl |
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m4_define([$0], [])[]dnl |
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]) |
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|
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|
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dnl _XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks if the -no-undefined linker flag must be |
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dnl provided when building libtool shared libraries. |
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dnl Result stored in xc_lt_shlib_use_no_undefined. |
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|
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m4_define([_XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED], |
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[dnl |
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# |
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# Verify if libtool shared libraries should be linked using flag -no-undefined |
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# |
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|
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AC_MSG_CHECKING([whether to build shared libraries with -no-undefined]) |
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xc_lt_shlib_use_no_undefined='no' |
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if test "x$allow_undefined" = 'xno'; then |
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xc_lt_shlib_use_no_undefined='yes' |
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elif test "x$allow_undefined_flag" = 'xunsupported'; then |
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xc_lt_shlib_use_no_undefined='yes' |
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fi |
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case $host_os in @%:@ ( |
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cygwin* | mingw* | pw32* | cegcc* | os2* | aix*) |
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xc_lt_shlib_use_no_undefined='yes' |
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;; |
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esac |
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AC_MSG_RESULT([$xc_lt_shlib_use_no_undefined]) |
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dnl |
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m4_define([$0], [])[]dnl |
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]) |
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|
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|
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dnl _XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks if the -mimpure-text linker flag must be |
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dnl provided when building libtool shared libraries. |
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dnl Result stored in xc_lt_shlib_use_mimpure_text. |
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|
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m4_define([_XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT], |
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[dnl |
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# |
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# Verify if libtool shared libraries should be linked using flag -mimpure-text |
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# |
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AC_MSG_CHECKING([whether to build shared libraries with -mimpure-text]) |
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xc_lt_shlib_use_mimpure_text='no' |
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case $host_os in @%:@ ( |
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solaris2*) |
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if test "x$GCC" = 'xyes'; then |
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xc_lt_shlib_use_mimpure_text='yes' |
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fi |
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;; |
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esac |
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AC_MSG_RESULT([$xc_lt_shlib_use_mimpure_text]) |
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dnl |
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m4_define([$0], [])[]dnl |
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]) |
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|
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|
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dnl _XC_CHECK_LT_BUILD_WITH_PIC |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks wether libtool shared and static libraries |
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dnl would be built with PIC depending on user input, |
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dnl default behavior and knowledge that libtool has |
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dnl about host characteristics. |
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dnl Results stored in following shell variables: |
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dnl xc_lt_build_shared_with_pic |
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dnl xc_lt_build_static_with_pic |
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|
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m4_define([_XC_CHECK_LT_BUILD_WITH_PIC], |
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[dnl |
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# |
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# Find out wether libtool libraries would be built wit PIC |
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# |
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case "x$pic_mode" in @%:@ (((( |
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xdefault) |
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xc_lt_build_shared_with_pic='yes' |
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xc_lt_build_static_with_pic='no' |
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;; |
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xyes) |
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xc_lt_build_shared_with_pic='yes' |
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xc_lt_build_static_with_pic='yes' |
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;; |
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xno) |
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xc_lt_build_shared_with_pic='no' |
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xc_lt_build_static_with_pic='no' |
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;; |
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*) |
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xc_lt_build_shared_with_pic='unknown' |
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xc_lt_build_static_with_pic='unknown' |
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AC_MSG_WARN([unexpected libtool pic_mode value: $pic_mode]) |
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;; |
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esac |
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AC_MSG_CHECKING([whether to build shared libraries with PIC]) |
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AC_MSG_RESULT([$xc_lt_build_shared_with_pic]) |
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AC_MSG_CHECKING([whether to build static libraries with PIC]) |
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AC_MSG_RESULT([$xc_lt_build_static_with_pic]) |
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dnl |
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m4_define([$0],[])dnl |
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]) |
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|
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|
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dnl _XC_CHECK_LT_BUILD_SINGLE_VERSION |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Checks wether a libtool shared or static library |
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dnl is finally built exclusively without the other. |
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dnl Results stored in following shell variables: |
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dnl xc_lt_build_shared_only |
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dnl xc_lt_build_static_only |
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|
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m4_define([_XC_CHECK_LT_BUILD_SINGLE_VERSION], |
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[dnl |
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# |
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# Verify if libtool shared libraries will be built while static not built |
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# |
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|
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AC_MSG_CHECKING([whether to build shared libraries only]) |
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if test "$xc_lt_build_shared" = 'yes' && |
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test "$xc_lt_build_static" = 'no'; then |
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xc_lt_build_shared_only='yes' |
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else |
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xc_lt_build_shared_only='no' |
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fi |
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AC_MSG_RESULT([$xc_lt_build_shared_only]) |
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|
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# |
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# Verify if libtool static libraries will be built while shared not built |
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# |
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AC_MSG_CHECKING([whether to build static libraries only]) |
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if test "$xc_lt_build_static" = 'yes' && |
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test "$xc_lt_build_shared" = 'no'; then |
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xc_lt_build_static_only='yes' |
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else |
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xc_lt_build_static_only='no' |
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fi |
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AC_MSG_RESULT([$xc_lt_build_static_only]) |
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dnl |
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m4_define([$0],[])dnl |
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]) |
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|
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|
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dnl _XC_LIBTOOL_POSTLUDE |
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dnl ------------------------------------------------- |
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dnl Private macro. |
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dnl |
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dnl Performs several checks related with libtool that |
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dnl can not be done unless libtool code has already |
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dnl been executed. See individual check descriptions |
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dnl for further info. |
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|
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m4_define([_XC_LIBTOOL_POSTLUDE], |
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[dnl |
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_XC_CHECK_LT_BUILD_LIBRARIES |
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_XC_CHECK_LT_SHLIB_USE_VERSION_INFO |
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_XC_CHECK_LT_SHLIB_USE_NO_UNDEFINED |
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_XC_CHECK_LT_SHLIB_USE_MIMPURE_TEXT |
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_XC_CHECK_LT_BUILD_WITH_PIC |
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_XC_CHECK_LT_BUILD_SINGLE_VERSION |
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dnl |
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m4_define([$0],[])dnl |
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]) |
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|
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|
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dnl XC_LIBTOOL |
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dnl ------------------------------------------------- |
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dnl Public macro. |
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dnl |
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dnl This macro embeds libtool machinery into configure |
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dnl script, regardless of libtool version, and performs |
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dnl several additional checks whose results can be used |
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dnl later on. |
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dnl |
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dnl Usage of this macro ensures that generated configure |
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dnl script uses equivalent logic irrespective of autoconf |
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dnl or libtool version being used to generate configure |
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dnl script. |
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dnl |
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dnl Results stored in following shell variables: |
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dnl xc_lt_build_shared |
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dnl xc_lt_build_static |
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dnl xc_lt_shlib_use_version_info |
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dnl xc_lt_shlib_use_no_undefined |
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dnl xc_lt_shlib_use_mimpure_text |
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dnl xc_lt_build_shared_with_pic |
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dnl xc_lt_build_static_with_pic |
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dnl xc_lt_build_shared_only |
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dnl xc_lt_build_static_only |
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|
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AC_DEFUN([XC_LIBTOOL], |
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[dnl |
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AC_PREREQ([2.50])dnl |
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dnl |
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AC_BEFORE([$0],[LT_INIT])dnl |
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AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl |
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AC_BEFORE([$0],[AC_LIBTOOL_WIN32_DLL])dnl |
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dnl |
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AC_REQUIRE([XC_CHECK_PATH_SEPARATOR])dnl |
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AC_REQUIRE([AC_CANONICAL_HOST])dnl |
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AC_REQUIRE([AC_PROG_CC])dnl |
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dnl |
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_XC_LIBTOOL_PREAMBLE |
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_XC_LIBTOOL_BODY |
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_XC_LIBTOOL_POSTLUDE |
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dnl |
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m4_ifdef([AC_LIBTOOL_WIN32_DLL], |
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[m4_undefine([AC_LIBTOOL_WIN32_DLL])])dnl |
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m4_ifdef([AC_PROG_LIBTOOL], |
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[m4_undefine([AC_PROG_LIBTOOL])])dnl |
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m4_ifdef([LT_INIT], |
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[m4_undefine([LT_INIT])])dnl |
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dnl |
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m4_define([$0],[])dnl |
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]) |
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|
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