diff options
Diffstat (limited to 'src/grep/m4/netinet_in_h.m4')
| -rw-r--r-- | src/grep/m4/netinet_in_h.m4 | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/src/grep/m4/netinet_in_h.m4 b/src/grep/m4/netinet_in_h.m4 new file mode 100644 index 0000000..c555596 --- /dev/null +++ b/src/grep/m4/netinet_in_h.m4 @@ -0,0 +1,31 @@ +# netinet_in_h.m4 serial 5 +dnl Copyright (C) 2006-2021 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_HEADER_NETINET_IN], +[ + AC_CACHE_CHECK([whether <netinet/in.h> is self-contained], + [gl_cv_header_netinet_in_h_selfcontained], + [ + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>]], [[]])], + [gl_cv_header_netinet_in_h_selfcontained=yes], + [gl_cv_header_netinet_in_h_selfcontained=no]) + ]) + if test $gl_cv_header_netinet_in_h_selfcontained = yes; then + NETINET_IN_H='' + else + NETINET_IN_H='netinet/in.h' + AC_CHECK_HEADERS([netinet/in.h]) + gl_CHECK_NEXT_HEADERS([netinet/in.h]) + if test $ac_cv_header_netinet_in_h = yes; then + HAVE_NETINET_IN_H=1 + else + HAVE_NETINET_IN_H=0 + fi + AC_SUBST([HAVE_NETINET_IN_H]) + fi + AC_SUBST([NETINET_IN_H]) + AM_CONDITIONAL([GL_GENERATE_NETINET_IN_H], [test -n "$NETINET_IN_H"]) +]) |