* Makefile.in (ENVSETUP): Don't assume POSIX make semantics for

commands that fail.  Don't assume that "export a=b" is valid shell
syntax.  This is needed for Solaris 2.5.1.

* src/libs/libgroff/tmpfile.cc, src/utils/indxbib/indxbib.cc: Fix
comment about missing Solaris headers.

* PROBLEMS: Add section about problems with Sun Make and VPATH.

* src/roff/nroff/nroff.sh: Fix main loop syntax.

5 files changed, 40 insertions, 5 deletions

diff --git a/ChangeLog b/ChangeLog
index 9be77c1c..2c3f0f67 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,14 @@
+2000-06-28  Paul Eggert  <eggert@twinsun.com>
+
+	* Makefile.in (ENVSETUP): Don't assume POSIX make semantics for
+	commands that fail.  Don't assume that "export a=b" is valid shell
+	syntax.  This is needed for Solaris 2.5.1.
+
+	* src/libs/libgroff/tmpfile.cc, src/utils/indxbib/indxbib.cc: Fix
+	comment about missing Solaris headers.
+
+	* PROBLEMS: Add section about problems with Sun Make and VPATH.
+
 2000-06-25  Werner LEMBERG  <wl@gnu.org>
 
 	* src/devics/grodvi/dvi.cc: Replace _setmode() (for MSC) with
@@ -212,7 +223,7 @@
 
 2000-05-28  Keith Thompson  <kst@sdsc.edu>
 
-	* src/roff/nroff/nroff.sh: Fix infinite loop syntax.
+	* src/roff/nroff/nroff.sh: Fix main loop syntax.
 
 	* src/utils/indxbib/indxbib.cc: Add declaration of mkstemp().
 
diff --git a/Makefile.in b/Makefile.in
index ab07b8c6..ccbd522d 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -368,8 +368,12 @@ TARGETS=all install install_bin install_data clean distclean mostlyclean \
 
 # This ENVSETUP gork is required by the DJGPP build on Windows 9X,
 # where Make needs to be case-sensitive to find files like BI and VERSION.
-ENVSETUP=`test -f $(srcdir)/makefile.ccpg*\
-	&& test -f $(srcdir)/Makefile.ccpg* && echo export FNCASE=y`
+ENVSETUP=\
+	if test -f $(srcdir)/makefile.ccpg* && \
+	   test -f $(srcdir)/Makefile.ccpg*; \
+	then FNCASE=y; export FNCASE; \
+	else :; \
+	fi
 
 do=all
 dodirs=$(ALLDIRS) dot
diff --git a/PROBLEMS b/PROBLEMS
index 391fcdac..b73db2f4 100644
--- a/PROBLEMS
+++ b/PROBLEMS
@@ -98,6 +98,24 @@ argument is a const char *.  Fix the declaration of open() in
 
 ----------------------------------------------------------------------
 
+* On a host using Unix make (e.g. Solaris), if you are compiling for
+  multiple architectures by building in a subdirectory, the make stops
+  with a message like this:
+
+    make: Fatal error: Don't know how to make target `assert.o'
+
+  or like this:
+
+    make: Fatal error: Can't find /u/src/groff/src/include/Makefile.sub': No such file or directory
+
+This occurs because GNU make and Unix make handle VPATH differently,
+and the groff build relies on GNU make's VPATH handling.
+
+Use GNU make to work around the problem.  In Solaris 8, GNU make is
+on the Software Companion CD and is installed as /opt/sfw/bin/gmake.
+
+----------------------------------------------------------------------
+
 * On Ultrix, the make stops with the message
 
   *** Error code 1
diff --git a/src/libs/libgroff/tmpfile.cc b/src/libs/libgroff/tmpfile.cc
index 378fc929..ffc165ce 100644
--- a/src/libs/libgroff/tmpfile.cc
+++ b/src/libs/libgroff/tmpfile.cc
@@ -30,7 +30,8 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include "nonposix.h"
 
 extern "C" {
-  // Sun's stdlib.h fails to declare this.
+  // Solaris 2.5.1 has these functions,
+  // but its stdlib.h fails to declare them.
   char *mktemp(char *);
   int mkstemp(char *);
 }
diff --git a/src/utils/indxbib/indxbib.cc b/src/utils/indxbib/indxbib.cc
index bd4780d7..3185fe2c 100644
--- a/src/utils/indxbib/indxbib.cc
+++ b/src/utils/indxbib/indxbib.cc
@@ -38,7 +38,8 @@ Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 #include "nonposix.h"
 
 extern "C" {
-  // Sun's stdlib.h fails to declare this.
+  // Solaris 2.5.1 has these functions,
+  // but its stdlib.h fails to declare them.
   char *mktemp(char *);
   int mkstemp(char *);
 }