configure: Add -U__STRICT_ANSI__ to CPPFLAGS on Cygwin and DOS.

In -std=c99 mode GCC defines __STRICT_ANSI__ to hide non-ANSI interfaces. This causes declarations for some POSIX functions to be omitted from system headers, which causes compilation failures.
14 years ago · a7a187a1be
parent cef7d70181
commit a7a187a1be
1 changed files with 2 additions and 0 deletions
--- a/2
+++ b/2
@ -2458,11 +2458,13 @@ case $target_os in
        objformat="win32"
        enable dos_paths
        check_cflags -fno-common
        add_cppflags -U__STRICT_ANSI__
        ;;
    *-dos|freedos|opendos)
        network_extralibs="-lsocket"
        objformat="coff"
        enable dos_paths
        add_cppflags -U__STRICT_ANSI__
        ;;
    linux)
        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600