Use gnulib's dup2 module instead of rolling our own.

* Makefile.in (GNULIB_MODULES): Add dup2.
* configure.in: Do not check for dup2; gnulib does that now.
* lib/dup2.c, m4/dup2.m4: New files, from gnulib.
* src/sysdep.c (dup2) [!HAVE_DUP2]: Remove; gnulib now does this.

1 files changed, 10 insertions, 1 deletions

diff --git a/lib/gnulib.mk b/lib/gnulib.mk
index 0fd7f520ac..18abe4536f 100644
--- a/lib/gnulib.mk
+++ b/lib/gnulib.mk
@@ -9,7 +9,7 @@
 # the same distribution terms as the rest of that program.
 #
 # Generated by gnulib-tool.
-# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=. --makefile-name=gnulib.mk --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt careadlinkat crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr filemode getloadavg getopt-gnu ignore-value intprops lstat mktime readlink socklen stdarg stdio strftime strtoumax symlink sys_stat
+# Reproduce by: gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=. --makefile-name=gnulib.mk --conditional-dependencies --no-libtool --macro-prefix=gl --no-vc-files alloca-opt careadlinkat crypto/md5 crypto/sha1 crypto/sha256 crypto/sha512 dtoastr dup2 filemode getloadavg getopt-gnu ignore-value intprops lstat mktime readlink socklen stdarg stdio strftime strtoumax symlink sys_stat
 
 
 MOSTLYCLEANFILES += core *.stackdump
@@ -159,6 +159,15 @@ EXTRA_libgnu_a_SOURCES += ftoastr.c
 
 ## end   gnulib module dtoastr
 
+## begin gnulib module dup2
+
+
+EXTRA_DIST += dup2.c
+
+EXTRA_libgnu_a_SOURCES += dup2.c
+
+## end   gnulib module dup2
+
 ## begin gnulib module filemode
 
 libgnu_a_SOURCES += filemode.c