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annotate src/libsamplerate-0.1.9/M4/add_cflags.m4 @ 168:ceec0dd9ec9c
Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
| author | Chris Cannam <cannam@all-day-breakfast.com> |
|---|---|
| date | Fri, 07 Feb 2020 11:51:13 +0000 |
| parents | 4a7071416412 |
| children |
| rev | line source |
|---|---|
| cannam@126 | 1 dnl @synopsis AC_ADD_CFLAGS |
| cannam@126 | 2 dnl |
| cannam@126 | 3 dnl Add the given option to CFLAGS, if it doesn't break the compiler |
| cannam@126 | 4 |
| cannam@126 | 5 AC_DEFUN([AC_ADD_CFLAGS], |
| cannam@126 | 6 [AC_MSG_CHECKING([if $CC accepts $1]) |
| cannam@126 | 7 ac_add_cflags__old_cflags="$CFLAGS" |
| cannam@126 | 8 CFLAGS="$CFLAGS $1" |
| cannam@126 | 9 AC_TRY_LINK([ |
| cannam@126 | 10 #include <stdio.h> |
| cannam@126 | 11 ], |
| cannam@126 | 12 [puts("Hello, World!"); return 0;], |
| cannam@126 | 13 AC_MSG_RESULT([yes]), |
| cannam@126 | 14 AC_MSG_RESULT([no]) |
| cannam@126 | 15 CFLAGS="$ac_add_cflags__old_cflags" |
| cannam@126 | 16 ) |
| cannam@126 | 17 ])# AC_ADD_CFLAGS |