forked from enlightenment/efl
91 lines
2.4 KiB
Plaintext
91 lines
2.4 KiB
Plaintext
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_FLAGS(EFL, FLAGS)
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dnl AC_SUBST : EFL_CFLAGS (EFL being replaced by its value)
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dnl have_flag: yes or no.
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AC_DEFUN([_EFL_CHECK_COMPILER_FLAGS],
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[dnl
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m4_pushdef([UPEFL], m4_translit([[$1]], [-a-z], [_A-Z]))dnl
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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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AC_LANG_POP([C])
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CFLAGS="${CFLAGS_save}"
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if test "x${have_flag}" = "xyes" ; then
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UPEFL[_CFLAGS]="${UPEFL[_CFLAGS]} [$2]"
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fi
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AC_SUBST(UPEFL[_CFLAGS])dnl
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m4_popdef([UPEFL])dnl
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])
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dnl EFL_CHECK_COMPILER_FLAGS(EFL, FLAGS)
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dnl Checks if FLAGS are supported and add to EFL_CLFAGS.
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dnl
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dnl It will first try every flag at once, if one fails will try them one by one.
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AC_DEFUN([EFL_CHECK_COMPILER_FLAGS],
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[dnl
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_EFL_CHECK_COMPILER_FLAGS([$1], [$2])
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if test "${have_flag}" != "yes"; then
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m4_foreach_w([flag], [$2], [_EFL_CHECK_COMPILER_FLAGS([$1], m4_defn([flag]))])
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fi
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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_FLAGS(EFL, FLAGS)
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dnl AC_SUBST : EFL_LDFLAGS (EFL being replaced by its value)
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dnl have_flag: yes or no
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AC_DEFUN([_EFL_CHECK_LINKER_FLAGS],
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[dnl
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m4_pushdef([UPEFL], m4_translit([[$1]], [-a-z], [_A-Z]))dnl
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LDFLAGS_save="${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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AC_LANG_POP([C])
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LDFLAGS="${LDFLAGS_save}"
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if test "x${have_flag}" = "xyes" ; then
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UPEFL[_LDFLAGS]="${UPEFL[_LDFLAGS]} [$2]"
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fi
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AC_SUBST(UPEFL[_LDFLAGS])dnl
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m4_popdef([UPEFL])dnl
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])
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dnl EFL_CHECK_LINKER_FLAGS(EFL, FLAGS)
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dnl Checks if FLAGS are supported and add to EFL_LDLFAGS.
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dnl
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dnl It will first try every flag at once, if one fails will try them one by one.
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AC_DEFUN([EFL_CHECK_LINKER_FLAGS],
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[dnl
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_EFL_CHECK_LINKER_FLAGS([$1], [$2])
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if test "${have_flag}" != "yes"; then
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m4_foreach_w([flag], [$2], [_EFL_CHECK_LINKER_FLAGS([$1], m4_defn([flag]))])
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fi
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])dnl
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