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| author | Philip Tricca <philip.b.tricca@intel.com> | 2017-03-08 14:29:49 -0800 |
|---|---|---|
| committer | Philip Tricca <philip.b.tricca@intel.com> | 2017-03-08 14:57:03 -0800 |
| commit | 2744781e04959c88bef84f7a665753e207a23712 (patch) | |
| tree | 73aa7a5b0b09bae8402236fefa87b7571cd0b036 /m4 | |
| parent | 5b285cec96ffd2497e6b398492f73696efb85d9a (diff) | |
| download | tpm2-tss-2744781e04959c88bef84f7a665753e207a23712.tar.gz | |
configure.ac: Move compiler / preproc / link flag macros to m4/.
This also renames these macros to align better with autoconf conventions
(puts them in the AX_ namespace & uppercase name) and fixes a bug in the
AX_ADD_LINK_FLAG macro where flags were being added to EXTRA_CFLAGS
instead of EXTRA_LDFLAGS.
Signed-off-by: Philip Tricca <philip.b.tricca@intel.com>
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/flags.m4 | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/m4/flags.m4 b/m4/flags.m4 new file mode 100644 index 00000000..d5ed9445 --- /dev/null +++ b/m4/flags.m4 @@ -0,0 +1,50 @@ +dnl AX_ADD_COMPILER_FLAG: +dnl A macro to add a CFLAG to the EXTRA_CFLAGS variable. This macro will +dnl check to be sure the compiler supprts the flag. Flags can be made +dnl mandatory (configure will fail). +dnl $1: C compiler flag to add to EXTRA_CFLAGS. +dnl $2: Set to "required" to cause configure failure if flag not supported.. +AC_DEFUN([AX_ADD_COMPILER_FLAG],[ + AX_CHECK_COMPILE_FLAG([$1],[ + EXTRA_CFLAGS="$EXTRA_CFLAGS $1" + AC_SUBST([EXTRA_CFLAGS])],[ + AS_IF([test x$2 != xrequired],[ + AC_MSG_WARN([Optional CFLAG "$1" not supported by your compiler, continuing.])],[ + AC_MSG_ERROR([Required CFLAG "$1" not supported by your compiler, aborting.])] + )] + )] +) +dnl AX_ADD_PREPROC_FLAG: +dnl Add the provided preprocessor flag to the EXTRA_CFLAGS variable. This +dnl macro will check to be sure the preprocessor supports the flag. +dnl The flag can be made mandatory by provideing the string 'required' as +dnl the second parameter. +dnl $1: Preprocessor flag to add to EXTRA_CFLAGS. +dnl $2: Set to "required" t ocause configure failure if preprocesor flag +dnl is not supported. +AC_DEFUN([AX_ADD_PREPROC_FLAG],[ + AX_CHECK_PREPROC_FLAG([$1],[ + EXTRA_CFLAGS="$EXTRA_CFLAGS $1" + AC_SUBST([EXTRA_CFLAGS])],[ + AS_IF([test x$2 != xrequired],[ + AC_MSG_WARN([Optional preprocessor flag "$1" not supported by your compiler, continuing.])],[ + AC_MSG_ERROR([Required preprocessor flag "$1" not supported by your compiler, aborting.])] + )] + )] +) +dnl AX_ADD_LINK_FLAG: +dnl A macro to add a LDLAG to the EXTRA_LDFLAGS variable. This macro will +dnl check to be sure the linker supprts the flag. Flags can be made +dnl mandatory (configure will fail). +dnl $1: linker flag to add to EXTRA_LDFLAGS. +dnl $2: Set to "required" to cause configure failure if flag not supported. +AC_DEFUN([AX_ADD_LINK_FLAG],[ + AX_CHECK_LINK_FLAG([$1],[ + EXTRA_LDFLAGS="$EXTRA_LDFLAGS $1" + AC_SUBST([EXTRA_LDFLAGS])],[ + AS_IF([test x$2 != xrequired],[ + AC_MSG_WARN([Optional LDFLAG "$1" not supported by your linker, continuing.])],[ + AC_MSG_ERROR([Required LDFLAG "$1" not supported by your linker, aborting.])] + )] + )] +) |