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Fix arch detection
Fix runtime crashes on i386: enforce stack-alignment=16
--- external/FFmpeg/configure.orig 2018-02-01 11:15:37 UTC
+++ external/FFmpeg/configure
@@ -3189,12 +3189,7 @@ target_os_default=$(tolower $(uname -s))
host_os=$target_os_default
# machine
-if test "$target_os_default" = aix; then
- arch_default=$(uname -p)
- strip_default="strip -X32_64"
-else
- arch_default=$(uname -m)
-fi
+arch_default=$(uname -p)
cpu="generic"
intrinsics="none"
@@ -6217,6 +6212,9 @@ elif enabled llvm_gcc; then
elif enabled clang; then
check_cflags -mllvm -stack-alignment=16
check_cflags -mstack-alignment=16
+ if enabled x86_32; then
+ check_cflags -mstackrealign
+ fi
check_cflags -Qunused-arguments
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
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