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|
dnl
dnl AC_LIB_RAW1394_FLAGS
dnl This just unconditionally sets the options. It should offer an option for
dnl explicitly giving the path to libraw1394 on the configure command line.
dnl
AC_DEFUN([AC_LIB_RAW1394_FLAGS], [
LIBRAW1394_CPPFLAGS=""
LIBRAW1394_CFLAGS=""
LIBRAW1394_LIBS="-lraw1394"
AC_SUBST(LIBRAW1394_CPPFLAGS)
AC_SUBST(LIBRAW1394_CFLAGS)
AC_SUBST(LIBRAW1394_LIBS)
])
dnl
dnl AC_LIB_RAW1394_HEADERS([ACTION_IF_FOUND[,ACTION_IF_NOT_FOUND]])
dnl
AC_DEFUN([AC_LIB_RAW1394_HEADERS], [
AC_REQUIRE([AC_LIB_RAW1394_FLAGS])
ac_libraw1394_save_cppflags=$CPPFLAGS
CPPFLAGS="$LIBRAW1394_CPPFLAGS $CPPFLAGS"
ac_libraw1394_headers=no
AC_CHECK_HEADER(libraw1394/raw1394.h, ac_libraw1394_headers=yes)
CPPFLAGS=$ac_libraw1394_save_cppflags
if test $ac_libraw1394_headers = yes ; then
ifelse([$1], , :, $1)
else
ifelse([$2], , :, $2)
fi
])
dnl
dnl AC_LIB_RAW1394_LIBVERSION(MINIMUMVERSION[,ACTION_IF_FOUND[,ACTION_IF_NOT_FOUND]])
dnl
AC_DEFUN([AC_LIB_RAW1394_LIBVERSION], [
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_LIB_RAW1394_FLAGS])
ac_libraw1394_save_cppflags=$CPPFLAGS
ac_libraw1394_save_cflags=$CFLAGS
ac_libraw1394_save_libs=$LIBS
CPPFLAGS="$LIBRAW1394_CPPFLAGS $CPPFLAGS"
CFLAGS="$LIBRAW1394_CFLAGS $CFLAGS"
LIBS="$LIBRAW1394_LIBS $LIBS"
ac_libraw1394_versiontest_success=no
ac_libraw1394_ver_symbol=`echo __libraw1394_version_$1 | sed 's/\./_/g'`
AC_TRY_LINK([], [{
extern char $ac_libraw1394_ver_symbol;
$ac_libraw1394_ver_symbol++;
}], ac_libraw1394_versiontest_success=yes)
CPPFLAGS=$ac_libraw1394_save_cppflags
CFLAGS=$ac_libraw1394_save_cflags
LIBS=$ac_libraw1394_save_libs
if test $ac_libraw1394_versiontest_success = yes; then
ifelse([$2], , :, $2)
else
ifelse([$3], , :, $3)
fi
])
dnl
dnl AC_LIB_RAW1394_RUNTEST(MINIMUMVERSION[,ACTION_IF_FOUND
dnl [,ACTION_IF_NOT_FOUND[,ACTION_IF_CROSS_COMPILING]]])
AC_DEFUN([AC_LIB_RAW1394_RUNTEST], [
ac_libraw1394_save_cppflags=$CPPFLAGS
ac_libraw1394_save_cflags=$CFLAGS
ac_libraw1394_save_libs=$LIBS
CPPFLAGS="$LIBRAW1394_CPPFLAGS $CPPFLAGS"
CFLAGS="$LIBRAW1394_CFLAGS $CFLAGS"
LIBS="$LIBRAW1394_LIBS $LIBS"
dnl This program compares two version strings and returns with code 0 if
dnl req_ver <= lib_ver, returns 1 otherwise.
dnl
dnl "1.23" < "1.23.1" (missing fields assumed zero)
dnl "1.23pre" <> "1.23" (undefined, do not use text as version)
dnl "1.21" > "1.3" (no implicit delimiters)
AC_TRY_RUN([
#include <stdlib.h>
#include <libraw1394/raw1394.h>
int main()
{
char *req_ver, *lib_ver;
unsigned int req_i, lib_i;
req_ver = "$1";
lib_ver = raw1394_get_libversion();
while (1) {
req_i = strtoul(req_ver, &req_ver, 10);
lib_i = strtoul(lib_ver, &lib_ver, 10);
if (req_i > lib_i) exit(1);
if (req_i < lib_i) exit(0);
if (*req_ver != '.' || *lib_ver != '.') exit(0);
req_ver++;
lib_ver++;
}
}
], ac_libraw1394_run=yes, ac_libraw1394_run=no, ac_libraw1394_run=cross)
CPPFLAGS=$ac_libraw1394_save_cppflags
CFLAGS=$ac_libraw1394_save_cflags
LIBS=$ac_libraw1394_save_libs
if test $ac_libraw1394_run = yes; then
ifelse([$2], , :, $2)
elif test $ac_libraw1394_run = no; then
ifelse([$3], , :, $3)
else
ifelse([$4], ,
AC_MSG_ERROR([no default for cross compiling in libraw1394 runtest macro]),
[$4])
fi
])
dnl
dnl AC_LIB_RAW1394(MINIMUMVERSION[,ACTION_IF_FOUND[,ACTION_IF_NOT_FOUND]])
dnl
dnl Versions before 0.9 can't be checked, so this will always fail if the
dnl installed libraw1394 is older than 0.9 as if the library weren't found.
dnl
AC_DEFUN([AC_LIB_RAW1394], [
AC_LIB_RAW1394_FLAGS
AC_LIB_RAW1394_HEADERS(ac_libraw1394_found=yes, ac_libraw1394_found=no)
if test $ac_libraw1394_found = yes ; then
AC_MSG_CHECKING(for libraw1394 version >= [$1])
AC_LIB_RAW1394_RUNTEST([$1], , ac_libraw1394_found=no,
AC_LIB_RAW1394_LIBVERSION([$1], , ac_libraw1394_found=no))
if test $ac_libraw1394_found = yes ; then
AC_MSG_RESULT(yes)
$2
else
AC_MSG_RESULT(no)
$3
fi
fi
])
dnl AC_TRY_CFLAGS (CFLAGS, [ACTION-IF-WORKS], [ACTION-IF-FAILS])
dnl check if $CC supports a given set of cflags
AC_DEFUN([AC_TRY_CFLAGS],
[AC_MSG_CHECKING([if $CC supports $1 flags])
SAVE_CFLAGS="$CFLAGS"
CFLAGS="$1"
AC_TRY_COMPILE([],[],[ac_cv_try_cflags_ok=yes],[ac_cv_try_cflags_ok=no])
CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT([$ac_cv_try_cflags_ok])
if test x"$ac_cv_try_cflags_ok" = x"yes"; then
ifelse([$2],[],[:],[$2])
else
ifelse([$3],[],[:],[$3])
fi])
|
