[FFmpeg-devel] [PATCH] avcodec/proresdec: align dequantization matrix buffers

[Carl Eugen Hoyos]

2017-11-16 3:51 GMT+01:00 James Almer <jamrial at gmail.com>:

> gcc -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 -fno-strict-overflow
> -fstack-protector-all -fPIE -c -o /tmp/ffconf.OTilhXct/test.o
> /tmp/ffconf.OTilhXct/test.c
> gcc -Wl,-z,relro -Wl,-z,now -fPIE -pie -o /tmp/ffconf.OTilhXct/test.exe
> /tmp/ffconf.OTilhXct/test.o
> F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> unrecognized option '-z'
> F:/msys/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/7.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
> use the --help option for usage information
> collect2.exe: error: ld returned 1 exit status
> C compiler test failed.
>
> configure can't even succeed with --toolchain=hardened on mingw-w64

Would the following work at all?
check_ldflags is not available yet at that point.

diff --git a/configure b/configure
index f087ba6..828b018 100755
--- a/configure
+++ b/configure
@@ -3860,6 +3860,13 @@ case "$toolchain" in
         add_cflags   -fPIE
         add_ldexeflags -fPIE -pie
     ;;
+    hardened-mingw)
+        add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
+        add_cflags   -fno-strict-overflow -fstack-protector-all
+        add_ldflags  -fno-strict-overflow -fstack-protector-all
+        add_cflags   -fPIE
+        add_ldexeflags -fPIE -pie
+    ;;
     ?*)
         die "Unknown toolchain $toolchain"
     ;;



Carl Eugen