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99 lines
2.5 KiB
99 lines
2.5 KiB
dnl Copyright (C) 2012 Vincent Torri <vincent dot torri at gmail dot com> |
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dnl This code is public domain and can be freely used or copied. |
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dnl Macro that check if compiler of linker flags are available |
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dnl Macro that checks for a compiler flag availability |
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dnl |
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dnl EFL_CHECK_COMPILER_FLAG(EFL, FLAG[, ACTION-IF-FOUND[ ,ACTION-IF-NOT-FOUND]]) |
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dnl AC_SUBST : EFL_CFLAGS (EFL being replaced by its value) |
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AC_DEFUN([EFL_CHECK_COMPILER_FLAG], |
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[ |
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m4_pushdef([UPEFL], m4_translit([[$1]], [-a-z], [_A-Z])) |
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m4_pushdef([UP], m4_translit([[$2]], [-a-z], [_A-Z])) |
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dnl store in options -Wfoo if -Wno-foo is passed |
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option=m4_bpatsubst([[$2]], [-Wno-], [-W]) |
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CFLAGS_save="${CFLAGS}" |
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CFLAGS="${CFLAGS} ${option}" |
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AC_LANG_PUSH([C]) |
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AC_MSG_CHECKING([whether the compiler supports $2]) |
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AC_COMPILE_IFELSE( |
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[AC_LANG_PROGRAM([[]])], |
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[have_flag="yes"], |
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[have_flag="no"]) |
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AC_MSG_RESULT([${have_flag}]) |
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CFLAGS="${CFLAGS_save}" |
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AC_LANG_POP([C]) |
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if test "x${have_flag}" = "xyes" ; then |
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UPEFL[_CFLAGS]="${UPEFL[_CFLAGS]} [$2]" |
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fi |
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AC_ARG_VAR(UPEFL[_CFLAGS], [preprocessor flags for $2]) |
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AC_SUBST(UPEFL[_CFLAGS]) |
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m4_popdef([UP]) |
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m4_popdef([UPEFL]) |
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]) |
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dnl Macro that iterates over a sequence of white separated flags |
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dnl and that call EFL_CHECK_COMPILER_FLAG() for each of these flags |
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dnl |
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dnl EFL_CHECK_COMPILER_FLAGS(EFL, FLAGS) |
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AC_DEFUN([EFL_CHECK_COMPILER_FLAGS], |
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[ |
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m4_foreach_w([flag], [$2], [EFL_CHECK_COMPILER_FLAG([$1], m4_defn([flag]))]) |
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]) |
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dnl Macro that checks for a linker flag availability |
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dnl |
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dnl EFL_CHECK_LINKER_FLAG(EFL, FLAG[, ACTION-IF-FOUND[ ,ACTION-IF-NOT-FOUND]]) |
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dnl AC_SUBST : EFL_LIBS (EFL being replaced by its value) |
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AC_DEFUN([EFL_CHECK_LINKER_FLAG], |
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[ |
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m4_pushdef([UPEFL], m4_translit([[$1]], [-a-z], [_A-Z])) |
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m4_pushdef([UP], m4_translit([[$2]], [,-a-z], [__A-Z])) |
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LDFLAGS_save="${LDFLAGS}" |
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LDFLAGS="${LDFLAGS} $2" |
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AC_LANG_PUSH([C]) |
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AC_MSG_CHECKING([whether the linker supports $2]) |
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AC_LINK_IFELSE( |
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[AC_LANG_PROGRAM([[]])], |
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[have_flag="yes"], |
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[have_flag="no"]) |
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AC_MSG_RESULT([${have_flag}]) |
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LDFLAGS="${LDFLAGS_save}" |
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AC_LANG_POP([C]) |
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if test "x${have_flag}" = "xyes" ; then |
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UPEFL[_LIBS]="${UPEFL[_LIBS]} [$2]" |
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fi |
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AC_ARG_VAR(UPEFL[_LIBS], [preprocessor flags for $2]) |
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AC_SUBST(UPEFL[_LIBS]) |
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m4_popdef([UP]) |
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m4_popdef([UPEFL]) |
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]) |
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dnl Macro that iterates over a sequence of white separated flags |
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dnl and that call EFL_CHECK_LINKER_FLAG() for each of these flags |
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dnl |
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dnl EFL_CHECK_LINKER_FLAGS(EFL, FLAGS) |
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AC_DEFUN([EFL_CHECK_LINKER_FLAGS], |
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[ |
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m4_foreach_w([flag], [$2], [EFL_CHECK_LINKER_FLAG([$1], m4_defn([flag]))]) |
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])
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