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annotate src/libsamplerate-0.1.9/M4/add_cflags.m4 @ 64:eccd51b72864
Update Win32 capnp builds to v0.6
| author | Chris Cannam |
|---|---|
| date | Tue, 23 May 2017 09:16:54 +0100 |
| parents | 481f5f8c5634 |
| children |
| rev | line source |
|---|---|
| Chris@41 | 1 dnl @synopsis AC_ADD_CFLAGS |
| Chris@41 | 2 dnl |
| Chris@41 | 3 dnl Add the given option to CFLAGS, if it doesn't break the compiler |
| Chris@41 | 4 |
| Chris@41 | 5 AC_DEFUN([AC_ADD_CFLAGS], |
| Chris@41 | 6 [AC_MSG_CHECKING([if $CC accepts $1]) |
| Chris@41 | 7 ac_add_cflags__old_cflags="$CFLAGS" |
| Chris@41 | 8 CFLAGS="$CFLAGS $1" |
| Chris@41 | 9 AC_TRY_LINK([ |
| Chris@41 | 10 #include <stdio.h> |
| Chris@41 | 11 ], |
| Chris@41 | 12 [puts("Hello, World!"); return 0;], |
| Chris@41 | 13 AC_MSG_RESULT([yes]), |
| Chris@41 | 14 AC_MSG_RESULT([no]) |
| Chris@41 | 15 CFLAGS="$ac_add_cflags__old_cflags" |
| Chris@41 | 16 ) |
| Chris@41 | 17 ])# AC_ADD_CFLAGS |