* configure.in: Don't provide an empty value for SH_SCRIPT_SED_CMD

since some non-GNU sed programs can't handle null regexps.
* configure, src/preproc/eqn/Makefile.sub,
src/roff/grog/Makefile.sub, src/roff/nroff/Makefile.sub: Updated.

* src/devices/grolbp/lbp.cc: Add an AIX workaround for an autoconf
bug (string.h and strings.h are both needed according to latest
POSIX standard).

7 files changed, 20 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index dd49dfd1..b38f282c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2000-08-18  Werner LEMBERG  <wl@gnu.org>
+
+	* configure.in: Don't provide an empty value for SH_SCRIPT_SED_CMD
+	since some non-GNU sed programs can't handle null regexps.
+	* configure, src/preproc/eqn/Makefile.sub,
+	src/roff/grog/Makefile.sub, src/roff/nroff/Makefile.sub: Updated.
+
+	* src/devices/grolbp/lbp.cc: Add an AIX workaround for an autoconf
+	bug (string.h and strings.h are both needed according to latest
+	POSIX standard).
+
 2000-08-08  Werner LEMBERG  <wl@gnu.org>
 
 	* tmac/tmac.a4: Will now work with ms macros also; -ma4 should be
diff --git a/configure b/configure
index 31d9341e..160b11d4 100755
--- a/configure
+++ b/configure
@@ -1389,7 +1389,7 @@ chmod +x conftest.sh
 if echo ./conftest.sh | (csh >/dev/null 2>&1) >/dev/null 2>&1; then
 	echo "$ac_t""yes" 1>&6; SH_SCRIPT_SED_CMD='1s/.*/:/'
 else
-	echo "$ac_t""no" 1>&6; SH_SCRIPT_SED_CMD=''
+	echo "$ac_t""no" 1>&6; SH_SCRIPT_SED_CMD='1s/a/a/'
 fi
 rm -f conftest.sh
 
diff --git a/configure.in b/configure.in
index 081df0e6..ef9e31d3 100755
--- a/configure.in
+++ b/configure.in
@@ -15,7 +15,9 @@ AC_PROG_RANLIB
 GROFF_INSTALL_SH
 AC_PROG_INSTALL
 AC_PROG_LN_S
-GROFF_CSH_HACK(SH_SCRIPT_SED_CMD='1s/.*/:/', SH_SCRIPT_SED_CMD='')
+dnl use a dummy sustitution if no csh hack is necessary to avoid errors
+dnl with non-GNU sed programs
+GROFF_CSH_HACK(SH_SCRIPT_SED_CMD='1s/.*/:/', SH_SCRIPT_SED_CMD='1s/a/a/')
 AC_SUBST(SH_SCRIPT_SED_CMD)
 dnl checks for headers
 AC_CHECK_HEADERS(stdlib.h unistd.h dirent.h limits.h sys/dir.h \
diff --git a/src/devices/grolbp/lbp.cc b/src/devices/grolbp/lbp.cc
index fe06e1c4..61f053e5 100644
--- a/src/devices/grolbp/lbp.cc
+++ b/src/devices/grolbp/lbp.cc
@@ -33,6 +33,7 @@ TODO
 
 #include "nonposix.h"
 
+#ifndef _AIX
 #ifdef HAVE_STRNCASECMP
 #ifdef NEED_DECLARATION_STRNCASECMP
 extern "C" {
@@ -41,6 +42,7 @@ extern "C" {
 }
 #endif /* NEED_DECLARATION_STRNCASECMP */
 #endif /* HAVE_STRNCASECMP */
+#endif /* !_AIX */
 
 static short int papersize = -1,  // papersize
 		 orientation = -1 , // orientation
diff --git a/src/preproc/eqn/Makefile.sub b/src/preproc/eqn/Makefile.sub
index 7b43a6e5..5d1934a1 100644
--- a/src/preproc/eqn/Makefile.sub
+++ b/src/preproc/eqn/Makefile.sub
@@ -46,7 +46,7 @@ all: neqn
 
 neqn: neqn.sh
 	-rm -f neqn
-	sed -e 's/@g@/$(g)/g' -e "$(SH_SCRIPT_SED_CMD)" $(srcdir)/neqn.sh >neqn
+	sed -e 's/@g@/$(g)/g' -e $(SH_SCRIPT_SED_CMD) $(srcdir)/neqn.sh >neqn
 	chmod +x neqn
 
 install_data: neqn
diff --git a/src/roff/grog/Makefile.sub b/src/roff/grog/Makefile.sub
index 35b2b3ca..de3dd4b8 100644
--- a/src/roff/grog/Makefile.sub
+++ b/src/roff/grog/Makefile.sub
@@ -11,7 +11,7 @@ grog: grog.pl grog.sh
 	else \
 	  rm -f $@; \
 	  sed -e 's/@g@/$(g)/g' \
-	      -e "$(SH_SCRIPT_SED_CMD)" $(srcdir)/grog.sh >$@; \
+	      -e $(SH_SCRIPT_SED_CMD) $(srcdir)/grog.sh >$@; \
 	fi
 	chmod +x $@
 
diff --git a/src/roff/nroff/Makefile.sub b/src/roff/nroff/Makefile.sub
index fa6bc4dc..47a1878b 100644
--- a/src/roff/nroff/Makefile.sub
+++ b/src/roff/nroff/Makefile.sub
@@ -6,7 +6,7 @@ all: nroff
 
 nroff: nroff.sh
 	rm -f $@
-	sed "$(SH_SCRIPT_SED_CMD)"  $(srcdir)/nroff.sh >$@
+	sed -e $(SH_SCRIPT_SED_CMD) $(srcdir)/nroff.sh >$@
 	chmod +x $@
 
 install_data: nroff