[FFmpeg-cvslog] configure: improve ar test for response files

[Gyan Doshi]

ffmpeg | branch: master | Gyan Doshi <ffmpeg at gyani.pro> | Tue Mar 18 19:37:56 2025 +0530| [b75b568b3d290ce827b80568ced1d68c277309e6] | committer: Gyan Doshi

configure: improve ar test for response files

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=b75b568b3d290ce827b80568ced1d68c277309e6
---

 configure | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/configure b/configure
index d84e32196d..14f7bcde0e 100755
--- a/configure
+++ b/configure
@@ -5230,12 +5230,6 @@ else
     ar_o='$@'
 fi
 
-if $ar 2>&1 | grep -qi  "@.*file"; then
-    ar_objs="true"
-else
-    ar_objs=""
-fi
-
 add_cflags $extra_cflags
 add_cxxflags $extra_cxxflags
 add_objcflags $extra_objcflags
@@ -7759,6 +7753,13 @@ case $ld_type in
     ;;
 esac
 
+{
+ar_out=${FFTMPDIR}/test$LIBSUF
+respfile="@/dev/null"
+out_arg="$(echo $ar_o | sed "s;\$@;$ar_out;g")"
+test_cmd $ar $arflags $out_arg $respfile && ar_objs="true" || ar_objs=""
+}
+
 enable frame_thread_encoder
 
 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }