diff options
Diffstat (limited to 'libf2c/libU77/configure.in')
| -rw-r--r-- | libf2c/libU77/configure.in | 31 |
1 files changed, 20 insertions, 11 deletions
diff --git a/libf2c/libU77/configure.in b/libf2c/libU77/configure.in index fefc194..b0e0aed 100644 --- a/libf2c/libU77/configure.in +++ b/libf2c/libU77/configure.in @@ -23,17 +23,6 @@ AC_PREREQ(2.12.1) AC_INIT(access_.c) AC_CONFIG_HEADER(config.h:config.hin) -# These defines are necessary to get 64-bit file size support. - -AC_DEFINE(_XOPEN_SOURCE, 500L, [Get Single Unix Specification semantics]) -# The following is needed by irix6.2 so that struct timeval is declared. -AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Get Single Unix Specification semantics]) -# The following is needed by Solaris2.5.1 so that struct timeval is declared. -AC_DEFINE(__EXTENSIONS__, 1, [Solaris extensions]) -AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support]) - -dnl Checks for programs. - dnl FIXME AC_PROG_CC wants CC to be able to link things, but it may dnl not be able to. define([AC_PROG_CC_WORKS],[]) @@ -42,6 +31,26 @@ define([AC_PROG_CC_WORKS],[]) # the makefiles AC_PROG_CC +# These defines are necessary to get 64-bit file size support. +# NetBSD 1.4 header files does not support XOPEN_SOURCE == 500, but it +# handles 64-bit file sizes without needing these defines. +AC_MSG_CHECKING(whether _XOPEN_SOURCE may be defined) +AC_TRY_COMPILE([#define _XOPEN_SOURCE 500L +#include <unistd.h>],, +may_use_xopen_source=yes, +may_use_xopen_source=no) +AC_MSG_RESULT($may_use_xopen_source) +if test $may_use_xopen_source = yes; then + AC_DEFINE(_XOPEN_SOURCE, 500L, [Get Single Unix Specification semantics]) + # The following is needed by irix6.2 so that struct timeval is declared. + AC_DEFINE(_XOPEN_SOURCE_EXTENDED, 1, [Get Single Unix Specification semantics]) + # The following is needed by Solaris2.5.1 so that struct timeval is declared. + AC_DEFINE(__EXTENSIONS__, 1, [Solaris extensions]) + AC_DEFINE(_FILE_OFFSET_BITS, 64, [Get 64-bit file size support]) +fi + +dnl Checks for programs. + LIBTOOL='$(SHELL) ../libtool' AC_SUBST(LIBTOOL) |