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57 lines
1.2 KiB
57 lines
1.2 KiB
dnl Copyright (C) 2010 Vincent Torri <vtorri at univ-evry dot fr> |
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dnl and Albin Tonnerre <albin dot tonnerre at gmail dot com> |
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dnl That code is public domain and can be freely used or copied. |
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dnl Macro that checks if a compiler flag is supported by the compiler. |
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dnl Usage: EFL_COMPILER_FLAG(flag) |
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dnl flag is added to CFLAGS if supported. |
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AC_DEFUN([EFL_COMPILER_FLAG], |
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[ |
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CFLAGS_save="${CFLAGS}" |
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CFLAGS="${CFLAGS} $1" |
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AC_LANG_PUSH([C]) |
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AC_MSG_CHECKING([whether the compiler supports $1]) |
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AC_COMPILE_IFELSE( |
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[AC_LANG_PROGRAM([[]])], |
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[have_flag="yes"], |
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[have_flag="no"]) |
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AC_MSG_RESULT([${have_flag}]) |
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if test "x${have_flag}" = "xno" ; then |
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CFLAGS="${CFLAGS_save}" |
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fi |
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AC_LANG_POP([C]) |
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]) |
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dnl Macro that checks if a linker flag is supported by the compiler. |
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dnl Usage: EFL_LINKER_FLAG(flag) |
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dnl flag is added to CFLAGS if supported (will be passed to ld anyway). |
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AC_DEFUN([EFL_LINKER_FLAG], |
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[ |
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CFLAGS_save="${CFLAGS}" |
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CFLAGS="${CFLAGS} $1" |
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AC_LANG_PUSH([C]) |
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AC_MSG_CHECKING([whether the compiler supports $1]) |
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AC_LINK_IFELSE( |
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[AC_LANG_PROGRAM([[]])], |
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[have_flag="yes"], |
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[have_flag="no"]) |
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AC_MSG_RESULT([${have_flag}]) |
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if test "x${have_flag}" = "xno" ; then |
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CFLAGS="${CFLAGS_save}" |
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fi |
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AC_LANG_POP([C]) |
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])
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