Add test to avoid recursion, if the build environment is not

correctly set up.

diff --git a/build/library.mk b/build/library.mk
index b00a2881e2d8efc011ee1de91313ddc592a57e5c..d8c6103e85f57f14413de03154b52a0b70e78350 100644 (file)
--- a/build/library.mk
+++ b/build/library.mk
@@ -12,7 +12,7 @@
 # THIS SOFTWARE IS PROVIDED BY SASCHA SCHUMANN ``AS IS'' AND ANY EXPRESS OR
 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
-# EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
 # OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
@@ -35,6 +35,9 @@ $(LTLIBRARY_SHARED_NAME): $(LTLIBRARY_OBJECTS) $(LTLIBRARY_DEPENDENCIES)
        $(SHLIBTOOL) --mode=install install $@ $(phplibdir)
 
 shared:
+       @if test -z '$(LTLIBRARY_SHARED_NAME)'; then \
+               echo "LTLIBRARY_SHARED_NAME is empty. Double check your Makefile.in"; \
+       fi
        @if test '$(SHLIBTOOL)' != '$(LIBTOOL)'; then \
                $(MAKE) 'LIBTOOL=$(SHLIBTOOL)' $(LTLIBRARY_SHARED_NAME); \
        else \