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build: fix commandline selection of nasm

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"nasm --version" works on nasm since around version 2.11 and as
such configure assumed it was yasm.

Based on libav commit f54037da8a by
Diego Biurrun.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2017-06-20 19:14:32 -03:00
parent d44935cbf4
commit 3cc73d3d6d
1 changed files with 17 additions and 6 deletions
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23
configure vendored
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@ -5490,16 +5490,26 @@ EOF
enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
if ! disabled_any asm mmx x86asm; then
if check_cmd $x86asmexe --version; then
x86asm_debug="-g dwarf2"
X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
elif check_cmd nasm -v; then
x86asmexe=nasm
probe_x86asm(){
x86asmexe_probe=$1
if check_cmd $x86asmexe_probe -v; then
x86asmexe=$x86asmexe_probe
x86asm_type=nasm
x86asm_debug="-g -F dwarf"
X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
elif check_cmd $x86asmexe_probe --version; then
x86asmexe=$x86asmexe_probe
x86asm_type=yasm
x86asm_debug="-g dwarf2"
X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
fi
}
if ! disabled_any asm mmx x86asm; then
for program in $x86asmexe yasm nasm; do
probe_x86asm $program
test -n "$x86asm_type" && break
done
X86ASMFLAGS="-f $objformat"
enabled pic && append X86ASMFLAGS "-DPIC"
test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
@ -6600,6 +6610,7 @@ echo "big-endian ${bigendian-no}"
echo "runtime cpu detection ${runtime_cpudetect-no}"
if enabled x86; then
echo "standalone assembly ${x86asm-no}"
echo "x86 assembler ${x86asmexe}"
echo "MMX enabled ${mmx-no}"
echo "MMXEXT enabled ${mmxext-no}"
echo "3DNow! enabled ${amd3dnow-no}"