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authorLudovic Courtès <ludo@gnu.org>2015-08-26 14:07:31 +0200
committerLudovic Courtès <ludo@gnu.org>2015-08-27 00:49:23 +0200
commit12e5b26643e2269e8f30d8399886d4302c3c09d1 (patch)
treecd2b0cdb72957146a411c490bf430eb963118535 /m4
parentc2b8467645bb2c2e17eb9c580f39e345c4dc2f4a (diff)
build: Do not build (guix build syscalls) if 'mount' is missing from libc.
This disables compilation of this module on GNU/Hurd. Reported by Manolis Ragkousis <manolis837@gmail.com>. * m4/guix.m4 (GUIX_CHECK_LIBC_MOUNT): New variable. * configure.ac: Use it. Define 'BUILD_SYSCALLS_MODULE' conditional. * Makefile.am (MODULES, EXTRA_DIST): Make 'guix/build/syscalls.scm' conditional on BUILD_SYSCALLS_MODULE.
Diffstat (limited to 'm4')
-rw-r--r--m4/guix.m413
1 files changed, 13 insertions, 0 deletions
diff --git a/m4/guix.m4 b/m4/guix.m4
index fa5a4023ba..2113383770 100644
--- a/m4/guix.m4
+++ b/m4/guix.m4
@@ -257,3 +257,16 @@ AC_DEFUN([GUIX_ASSERT_CXX11], [
AC_MSG_ERROR([C++ compiler '$CXX' does not support the C++11 standard])
fi
])
+
+dnl GUIX_CHECK_LIBC_MOUNT
+dnl
+dnl Check whether libc provides 'mount'. On GNU/Hurd it doesn't (yet).
+AC_DEFUN([GUIX_CHECK_LIBC_MOUNT], [
+ AC_CACHE_CHECK([whether libc provides 'mount'], [guix_cv_libc_has_mount],
+ [GUILE_CHECK([retval], [(dynamic-func \"mount\" (dynamic-link))])
+ if test "$retval" = 0; then
+ guix_cv_libc_has_mount="yes"
+ else
+ guix_cv_libc_has_mount="no"
+ fi])
+])