Commit 5224e600 authored by Niels Möller's avatar Niels Möller
Browse files

Check for fcntl file locking.

Rev: nettle/configure.ac:1.7
parent a5cf6636
......@@ -364,6 +364,30 @@ LSH_GCC_ATTRIBUTES
# sys/types.h is needed on some systems, in particular cygwin.
AX_CREATE_STDINT_H([nettle-stdint.h], [sys/types.h])
# Check for file locking. We (AC_PROG_CC?) have already checked for
# sys/types.h and unistd.h.
AC_CACHE_CHECK([for fcntl file locking],
nettle_cv_fcntl_locking,
[AC_TRY_COMPILE([
#if HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#if HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <fcntl.h>
],[
int op = F_SETLKW;
struct flock fl;
],
nettle_cv_fcntl_locking=yes,
nettle_cv_fcntl_locking=no)])
AH_TEMPLATE([HAVE_FCNTL_LOCKING], [Define if fcntl file locking is available])
if test "x$nettle_cv_fcntl_locking" = "xyes" ; then
AC_DEFINE(HAVE_FCNTL_LOCKING)
fi
# Checks for libraries
AC_CHECK_LIB(gmp, __gmpz_getlimbn,,
[AC_MSG_WARN(
......
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