[FFmpeg-cvslog] configure: Automatically add -isysroot for darwin if --sysroot is specified

Martin Storsjö git at videolan.org
Mon Nov 6 23:03:04 EET 2017


ffmpeg | branch: master | Martin Storsjö <martin at martin.st> | Wed Jun 21 16:54:22 2017 +0300| [333a34da3a6d13155de480e7d16ec5fec7f4cd6c] | committer: Martin Storsjö

configure: Automatically add -isysroot for darwin if --sysroot is specified

Check the existing flags in the cc/cflags/cppflags/ldflags for
occurrances of -isysroot; if none is found but --sysroot was specified,
set -isysroot to the same value as --sysroot.

This simplifies configuring cross-builds for iOS, if the global
environment variable SDKROOT isn't set.

Signed-off-by: Martin Storsjö <martin at martin.st>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=333a34da3a6d13155de480e7d16ec5fec7f4cd6c
---

 configure | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure b/configure
index 22de1b358e..bbed2258b9 100755
--- a/configure
+++ b/configure
@@ -3981,6 +3981,10 @@ case $target_os in
             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
         check_header dispatch/dispatch.h &&
             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
+        if test -n "$sysroot"; then
+            is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
+            is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
+        fi
         ;;
     msys*)
         die "Native MSYS builds are discouraged, please use the MINGW environment."



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