gryf/wmaker
1
0
Fork 0
mirror of https://github.com/gryf/wmaker.git synced 2025-12-21 21:38:00 +01:00
Code Issues Projects Releases Wiki Activity

Detect if gcc is able to compile x86 asm and if it supports passing more

Browse Source 
than 10 parameters in inline asm, else disable asm code.
This should enable it to work on any x86 platform (not just linux as before)
given that a recent enough gcc is available (no more need to guess by looking
at $host)

This should also fix the issues of compiling wrlib with gcc-2.95
This commit is contained in:
dan
2004-10-31 05:33:39 +00:00
parent d292143af1
commit d7d3003e06
1 changed files with 10 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
configure.ac
View File

@@ -206,22 +206,18 @@ asm_support=no
mmx_support=no mmx_support=no
if test "$ac_cv_prog_gcc" = yes; then if test "$ac_cv_prog_gcc" = yes; then
# gcc-3.4 complains about some of our stuff without this # gcc-3.3 or newer complains about some of our stuff without this
NOSTRICTALIASING="-fno-strict-aliasing" NOSTRICTALIASING="-fno-strict-aliasing"
x86=0 AC_CACHE_CHECK(whether gcc supports x86 inline asm,
changequote(,)dnl ac_cv_c_inline_asm,
case "$host_cpu" in [AC_TRY_LINK(,[{int x; asm volatile("movl %%eax, %%ebx\n"::
i[3456]86) x86=1 "m" (x),"m" (x),"m" (x),"m" (x),"m" (x),"m" (x),
;; "m" (x),"m" (x),"m" (x),"m" (x),"m" (x),"m" (x));}],
esac ac_cv_c_inline_asm=yes,
changequote([,])dnl ac_cv_c_inline_asm=no)])
if test "$host_os" != "linux" -a "$host_os" != "linux-gnu" ; then if test "x$ac_cv_c_inline_asm" = xyes; then
x86=0
fi
if test $x86 = 1; then
AC_DEFINE(ASM_X86, 1, [define if processor is x86 (normally detected by configure)]) AC_DEFINE(ASM_X86, 1, [define if processor is x86 (normally detected by configure)])
asm_support=yes asm_support=yes