[FFmpeg-devel] [PATCH v2] configure: add option to select use of response files

From: Gyan Doshi <ffmpeg@gyani.pro>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH v2] configure: add option to select use of response files
Date: Wed, 26 Mar 2025 19:38:17 +0530
Message-ID: <20250326141140.10249-1-ffmpeg@gyani.pro> (raw)
In-Reply-To: <CALweWgDgxSRDvJY7dnu9zMJcCya131Hxxaw7o_HKyDyO=PZ9Fw@mail.gmail.com>

---
v2:
   *switched state and make var name to response_files
   *changed option to standard action-optname format

 configure           | 25 +++++++++++++++++--------
 ffbuild/library.mak |  4 ++--
 2 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/configure b/configure
index 2fdbe8cbbe..eef7826788 100755
--- a/configure
+++ b/configure
@@ -427,6 +427,7 @@ Toolchain options:
   --enable-thumb           compile for Thumb instruction set
   --enable-lto[=arg]       use link-time optimization
   --env="ENV=override"     override the environment variables
+  --disable-response-files Don't pass the list of objects to linker in a file [autodetect]
 
 Advanced options (experts only):
   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
@@ -2669,6 +2670,7 @@ CMDLINE_SELECT="
     extra_warnings
     logging
     optimizations
+    response_files
     rpath
     stripping
     version_tracking
@@ -4143,6 +4145,7 @@ objformat="elf32"
 x86asmexe_default="nasm"
 windres_default="windres"
 striptype="direct"
+response_files_default="auto"
 
 # OS
 target_os_default=$(tolower $(uname -s))
@@ -5188,7 +5191,7 @@ test -n "$cc_type" && enable $cc_type ||
 : ${dep_cc_default:=$cc}
 : ${ld_default:=$cc}
 : ${host_ld_default:=$host_cc}
-set_default ar as objcc dep_cc ld ln_s host_ld windres
+set_default ar as objcc dep_cc ld ln_s host_ld windres response_files
 
 probe_cc as "$as"
 asflags_filter=$_flags_filter
@@ -7754,12 +7757,18 @@ 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 $respfile && ar_objs="true" || ar_objs=""
-}
+if [ "$response_files" != "no" ]; then
+    ar_out=${FFTMPDIR}/test$LIBSUF
+    respfile="@/dev/null"
+    out_arg="$(echo $ar_o | sed "s;\$@;$ar_out;g")"
+    if test_cmd $ar $arflags $out_arg $respfile; then
+        response_files="yes"
+    elif [ "$response_files" = "auto" ]; then
+        response_files="no"
+    else
+        die "Response files are not available with this toolchain. Exiting"
+    fi
+fi
 
 enable frame_thread_encoder
 
@@ -8141,7 +8150,7 @@ DEPX86ASM=$x86asmexe
 DEPX86ASMFLAGS=\$(X86ASMFLAGS)
 AR=$ar
 ARFLAGS=$arflags
-AR_OBJS=$ar_objs
+RESPONSE_FILES=$response_files
 AR_O=$ar_o
 AR_CMD=$ar
 NM_CMD=$nm
diff --git a/ffbuild/library.mak b/ffbuild/library.mak
index 15302852ec..3f7d604086 100644
--- a/ffbuild/library.mak
+++ b/ffbuild/library.mak
@@ -35,7 +35,7 @@ OBJS += $(SHLIBOBJS)
 endif
 $(SUBDIR)$(LIBNAME): $(OBJS) $(STLIBOBJS)
 	$(RM) $@
-ifeq ($(AR_OBJS),true)
+ifeq ($(RESPONSE_FILES),yes)
 	-$(RM) $@.objs
 	$(Q)$(foreach ARG,$^,echo -n "$(ARG) " >> $@.objs;)
 	$(AR) $(ARFLAGS) $(AR_O) @$@.objs
@@ -73,7 +73,7 @@ $(SUBDIR)$(SLIBNAME): $(SUBDIR)$(SLIBNAME_WITH_MAJOR)
 
 $(SUBDIR)$(SLIBNAME_WITH_MAJOR): $(OBJS) $(SHLIBOBJS) $(SLIBOBJS) $(SUBDIR)lib$(NAME).ver
 	$(SLIB_CREATE_DEF_CMD)
-ifeq ($(AR_OBJS),true)
+ifeq ($(RESPONSE_FILES),yes)
 	-$(RM) $$@.objs
 	$(Q)$(eval LDARGS=$$(filter %.o,$$^))
 	$(Q)$(foreach ARG,$$(LDARGS),echo -n "$(ARG) " >> $$@.objs;)
-- 
2.46.1

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".
