build: Use _extralibs variable names instead of _libs everywhere

This makes naming more consistent and simplifies extralibs-related changes.

Makefile

@@ -164,7 +164,7 @@ OBJS-$(1) += $(1).o $(OBJS-$(1)-yes)
 $(1)$(EXESUF): $$(OBJS-$(1))
 $$(OBJS-$(1)): CFLAGS  += $(CFLAGS-$(1))
 $(1)$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
-$(1)$(EXESUF): FF_EXTRALIBS += $(LIBS-$(1))
+$(1)$(EXESUF): FF_EXTRALIBS += $(EXTRALIBS-$(1))
 -include $$(OBJS-$(1):.o=.d)
 endef
 

configure

@@ -1023,8 +1023,8 @@ check_pkg_config(){
     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
-        set_safe "${pkg}_cflags" $pkg_cflags   &&
-        set_safe "${pkg}_libs"   $pkg_libs
+        set_safe "${pkg}_cflags"    $pkg_cflags &&
+        set_safe "${pkg}_extralibs" $pkg_libs
 }
 
 check_exec(){
@@ -1117,7 +1117,7 @@ require_pkg_config(){
     pkg="${1%% *}"
     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
     add_cflags    $(get_safe "${pkg}_cflags")
-    add_extralibs $(get_safe "${pkg}_libs")
+    add_extralibs $(get_safe "${pkg}_extralibs")
 }
 
 hostcc_e(){
@@ -2477,7 +2477,7 @@ avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_fi
                fps_filter null_filter resample_filter scale_filter
                trim_filter"
 avplay_deps="avcodec avfilter avformat avresample sdl"
-avplay_libs='$sdl_libs'
+avplay_extralibs='$sdl_extralibs'
 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
 avprobe_deps="avcodec avformat"
 
@@ -4695,7 +4695,7 @@ enabled omx_rpi           && { check_header OMX_Core.h ||
 enabled omx               && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }
 enabled openssl           && { { check_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
                                  check_pkg_config openssl openssl/ssl.h SSL_library_init; } && {
-                               add_cflags $openssl_cflags && add_extralibs $openssl_libs; }||
+                               add_cflags $openssl_cflags && add_extralibs $openssl_extralibs; } ||
                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
                                check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
                                check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
@@ -4773,7 +4773,7 @@ if enabled libxcb; then
         } && enable libxcb_xfixes
 
     add_cflags "$xcb_shape_cflags $xcb_shm_cflags $xcb_xfixes_cflags"
-    add_extralibs "$xcb_shape_libs $xcb_shm_libs $xcb_xfixes_libs"
+    add_extralibs "$xcb_shape_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs"
 fi
 
 enabled vaapi && require vaapi va/va.h vaInitialize -lva
@@ -5329,12 +5329,12 @@ map 'get_version $v' $LIBRARY_LIST
 
 map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> config.mak' $LIBRARY_LIST
 
-print_program_libs(){
-    eval "program_libs=\$${1}_libs"
-    eval echo "LIBS-${1}=${program_libs}" >> config.mak
+print_program_extralibs(){
+    eval "program_extralibs=\$${1}_extralibs"
+    eval echo "EXTRALIBS-${1}=${program_extralibs}" >> config.mak
 }
 
-map 'print_program_libs $v' $PROGRAM_LIST
+map 'print_program_extralibs $v' $PROGRAM_LIST
 
 cat > $TMPH <<EOF
 /* Automatically generated by configure - do not modify! */