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Add support for version checks.

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This commit is contained in:
Dag-Erling Smørgrav 2018-05-06 02:10:43 +02:00
parent 42e19ba158
commit e603e0bc2e
1 changed files with 42 additions and 10 deletions
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52
m4/ax_pkg_config.m4
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@ -28,7 +28,7 @@ dnl OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
dnl SUCH DAMAGE.
dnl
m4_define([AX_PKG_CONFIG_MACROS_VERSION], [0.20170404])
m4_define([AX_PKG_CONFIG_MACROS_VERSION], [0.20180506])
dnl
dnl AX_PROG_PKG_CONFIG([min-version])
@ -39,8 +39,10 @@ dnl
AC_DEFUN([AX_PROG_PKG_CONFIG], [
m4_pattern_forbid([^AX_PKG_CONFIG_[A-Z_]+$])
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config binary])
AC_ARG_VAR([PKG_CONFIG_PATH], [list of directories to prepend to default search path])
AC_ARG_VAR([PKG_CONFIG_LIBDIR], [list of directories to search instead of default search path])
AC_ARG_VAR([PKG_CONFIG_PATH],
[list of directories to prepend to default search path])
AC_ARG_VAR([PKG_CONFIG_LIBDIR],
[list of directories to search instead of default search path])
if test x"${PKG_CONFIG}" = x"" ; then
AC_PATH_PROGS([PKG_CONFIG], [pkgconf pkg-config]) >/dev/null
else
@ -97,12 +99,17 @@ AC_DEFUN([AX_PKG_CONFIG_VAR], [
])
dnl
dnl AX_PKG_CONFIG_CHECK(package-name,
dnl AX_PKG_CONFIG_CHECK(package-name, [version-spec],
dnl [action-if-found], [action-if-not-found])
dnl -------------------------------------------
dnl
dnl Check if the specified package is installed. If it is, define
dnl HAVE_PACKAGE, PACKAGE_VERSION, PACKAGE_CFLAGS and PACKAGE_LIBS.
dnl
dnl The second argument, if non-empty, specifies a minimum (>=1.2.3 or
dnl >1.2.3), maximum (<=1.2.3 or <1.2.3) or exact (==1.2.3 or =1.2.3
dnl or 1.2.3) version to look for.
dnl
dnl The specified actions are performed in addition to the standard
dnl actions.
dnl
@ -110,10 +117,35 @@ AC_DEFUN([AX_PKG_CONFIG_CHECK], [
AC_REQUIRE([AX_PROG_PKG_CONFIG])
m4_define([_P], AS_TR_SH([m4_toupper([$1])]))
m4_define([_p], AS_TR_SH([m4_tolower([$1])]))
dnl
ver="$2"
ver="${ver##*\[<=>\]}"
case "$2" in
"")
vopt=""
vtext="$1"
;;
">=$ver"|">$ver")
vopt="--atleast-version=$ver"
vtext="$1 $ver or newer"
;;
"<=$ver"|"<$ver")
vopt="--max-version=$ver"
vtext="$1 $ver or older"
;;
"==$ver"|"=$ver"|"$ver")
vopt="--exact-version=$ver"
vtext="$1 $ver"
;;
*)
AC_MSG_ERROR([invalid version specification: "$2"])
;;
esac
dnl
AC_ARG_VAR(_P[_CFLAGS], [C compiler flags for $1])
AC_ARG_VAR(_P[_LIBS], [linker flags for $1])
AC_MSG_CHECKING([if $1 is installed])
if AC_RUN_LOG(["${PKG_CONFIG}" --exists --print-errors "$1"]) ; then
AC_MSG_CHECKING([if ${vtext} is installed])
if AC_RUN_LOG(["${PKG_CONFIG}" --exists $vopt --print-errors "$1"]) ; then
AC_MSG_RESULT([yes])
[ax_pc_cv_have_]_p=yes
AC_DEFINE([HAVE_]_P, [1], [Define to 1 if you have $1])
@ -133,11 +165,11 @@ dnl
AC_SUBST(_P[_LIBS], [$ax_pc_cv_]_p[_libs])
AC_MSG_RESULT([${ax_pc_cv_]_p[_libs:-none}])
dnl
m4_default([$2], [:])
m4_default([$3], [:])
else
AC_MSG_RESULT([no])
[ax_pc_cv_have_]_p=no
m4_default([$3], [:])
m4_default([$4], [:])
fi
m4_ifdef([AM_CONDITIONAL], [
AM_CONDITIONAL([HAVE_]_P, [test x"$ax_pc_cv_have_]_p[" = x"yes"])
@ -145,13 +177,13 @@ dnl
])
dnl
dnl AX_PKG_CONFIG_REQUIRE(package-name)
dnl AX_PKG_CONFIG_REQUIRE(package-name, [version-spec])
dnl -----------------------------------
dnl
dnl As above, but fail if the package is not installed.
dnl
AC_DEFUN([AX_PKG_CONFIG_REQUIRE], [
AX_PKG_CONFIG_CHECK([$1], [], [
AX_PKG_CONFIG_CHECK([$1], [$2], [], [
AC_MSG_ERROR([cannot proceed without $1])
])
])