Make use of system-specific linker option to embed shared library search

path into executables and shared libraries (-rpath or -R for most).  Can be
disabled with --disable-rpath, since some binary packaging standards do not
like this option.

Author: petere

configure

@@ -234,6 +234,13 @@ PGAC_ARG_BOOL(enable, shared, yes,
               [  --disable-shared        do not build shared libraries])
 AC_SUBST(enable_shared)
 
+#
+# '-rpath'-like feature can be disabled
+#
+PGAC_ARG_BOOL(enable, rpath, yes,
+              [  --disable-rpath         do not embed shared library search path in executables])
+AC_SUBST(enable_rpath)
+
 
 #
 # C compiler

configure.in

@@ -1,5 +1,5 @@
 # -*-makefile-*-
-# $Header: /cvsroot/pgsql/src/Makefile.global.in,v 1.105 2000/10/25 16:13:52 petere Exp $
+# $Header: /cvsroot/pgsql/src/Makefile.global.in,v 1.106 2000/10/27 23:59:39 petere Exp $
 
 #------------------------------------------------------------------------------
 # All PostgreSQL makefiles include this file and use the variables it sets,
@@ -115,6 +115,7 @@ with_tk		= @with_tk@
 enable_odbc	= @enable_odbc@
 MULTIBYTE	= @MULTIBYTE@
 enable_shared	= @enable_shared@
+enable_rpath	= @enable_rpath@
 
 python_extmakefile = @python_extmakefile@
 python_moduledir = @python_moduledir@
@@ -213,6 +214,9 @@ ELF_SYSTEM= @ELF_SYS@
 # Pull in platform-specific magic
 include $(top_builddir)/src/Makefile.port
 
+ifeq ($(enable_rpath), yes)
+LDFLAGS += $(rpath)
+endif
 
 ##########################################################################
 #

src/Makefile.global.in

@@ -6,7 +6,7 @@
 # Copyright (c) 1998, Regents of the University of California
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/Makefile.shlib,v 1.29 2000/10/27 20:09:48 petere Exp $
+#    $Header: /cvsroot/pgsql/src/Makefile.shlib,v 1.30 2000/10/27 23:59:39 petere Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -137,9 +137,6 @@ ifeq ($(PORTNAME), netbsd)
   shlib			:= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
   ifdef ELF_SYSTEM
     LINK.shared		= $(COMPILER) -shared -Wl,-soname -Wl,$(soname)
-    ifneq ($(SHLIB_LINK),)
-      LINK.shared	+= -Wl,-R$(libdir)
-    endif
   else
     LINK.shared		= $(LD) -x -Bshareable -Bforcearchive
   endif
@@ -148,12 +145,12 @@ endif
 ifeq ($(PORTNAME), hpux)
 # HPUX doesn't believe in version numbers for shlibs
   shlib			:= lib$(NAME)$(DLSUFFIX)
-  LINK.shared		= $(LD) -b
+  LINK.shared		= $(LD) -b +b $(libdir)
 endif
 
 ifeq ($(PORTNAME), irix5)
   shlib			:= lib$(NAME)$(DLSUFFIX).$(SO_MAJOR_VERSION)
-  LINK.shared		:= $(COMPILER) -shared -rpath $(libdir) -set_version sgi$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
+  LINK.shared		= $(COMPILER) -shared -set_version sgi$(SO_MAJOR_VERSION).$(SO_MINOR_VERSION)
 endif
 
 ifeq ($(PORTNAME), linux)
@@ -197,6 +194,7 @@ ifeq ($(PORTNAME), unixware)
       LINK.shared	= $(CXX) -G
     endif
   endif
+  LINK.shared		+= -Wl,-z,text
 endif
 
 ifeq ($(PORTNAME), win)
@@ -215,6 +213,10 @@ endif
 # Pull in any extra -L options that the user might have specified.
 SHLIB_LINK := $(filter -L%, $(LDFLAGS)) $(SHLIB_LINK)
 
+ifeq ($(enable_rpath), yes)
+SHLIB_LINK += $(rpath)
+endif
+
 endif # enable_shared
 
 

src/Makefile.shlib

@@ -2,6 +2,7 @@ AROPT = cq
 
 ifdef ELF_SYSTEM
 export_dynamic = -export-dynamic
+rpath = -R$(libdir)
 endif
 
 DLSUFFIX = .so

src/makefiles/Makefile.freebsd

@@ -2,13 +2,13 @@
 # which we do by linking -lc before -lcurses.  (Unfortunately we can't
 # just not use libcurses.)  This also ensures that we get the POSIX signal
 # routines in libc, not the BSD-like ones in libBSD.
-LDFLAGS:= -lc $(LDFLAGS)
+LIBS := -lc $(LIBS)
 
 # On the other hand, if we don't have POSIX signals, we need to use the
 # libBSD signal routines.  (HPUX 9 and early HPUX 10 releases don't have
 # POSIX signals.)  Make sure libBSD comes before libc in that case.
 ifeq ($(HAVE_POSIX_SIGNALS), no)
-   LDFLAGS:= -lBSD $(LDFLAGS)
+   LIBS := -lBSD $(LIBS)
 endif
 
 # On HPUX 9, rint() is provided only in the PA1.1 version of libm.
@@ -19,11 +19,15 @@ ifneq ($(HPUXMATHLIB),)
    LDFLAGS:= -L /lib/pa1.1 $(LDFLAGS)
 endif
 
-# On all HPUX versions, embed `libdir' as the shared library search path
-# so that the executables don't need SHLIB_PATH to be set, specify -z
-# to catch null pointer dereferences, and specify -E to make all symbols
-# visible to dynamically linked shared libraries.
-LDFLAGS+= -Wl,+b -Wl,$(libdir) -Wl,-z
+# Embed 'libdir' as the shared library search path so that the executables
+# don't need SHLIB_PATH to be set.  (We do not observe the --enable-rpath
+# switch here because you'd get rather bizarre behavior if you leave this
+# option off.)
+LDFLAGS += -Wl,+b -Wl,$(libdir)
+
+# catch null pointer dereferences
+LDFLAGS += -Wl,-z
+
 export_dynamic = -Wl,-E
 
 AROPT = crs

src/makefiles/Makefile.hpux

@@ -2,6 +2,7 @@
 RANLIB= touch
 MK_NO_LORDER= true
 AROPT = crs
+rpath = -Wl,-rpath,$(libdir)
 
 DLSUFFIX = .so
 CFLAGS_SL =

src/makefiles/Makefile.irix5

@@ -1,5 +1,6 @@
 AROPT = crs
 export_dynamic = -export-dynamic
+rpath = -Wl,-rpath,$(libdir)
 DLSUFFIX = .so
 CFLAGS_SL = -fpic
 

src/makefiles/Makefile.linux

@@ -2,6 +2,7 @@ AROPT = cq
 
 ifdef ELF_SYSTEM
 export_dynamic = -Wl,-E
+rpath = -Wl,-R$(libdir)
 endif
 
 DLSUFFIX = .so

src/makefiles/Makefile.netbsd

@@ -2,6 +2,7 @@ AROPT = cq
 
 ifdef ELF_SYSTEM
 export_dynamic = -Wl,-E
+rpath = -R$(libdir)
 endif
 
 DLSUFFIX = .so

src/makefiles/Makefile.openbsd

@@ -1,8 +1,7 @@
 AROPT = crs
 DLSUFFIX = .so
 CFLAGS_SL =
+rpath = -rpath $(libdir)
 
 %.so: %.o
 	$(LD) -shared -expect_unresolved '*' -o $@ $<
-
-LDFLAGS += -rpath $(libdir)

src/makefiles/Makefile.osf

@@ -1,11 +1,15 @@
-# $Header: /cvsroot/pgsql/src/makefiles/Makefile.solaris,v 1.3 2000/10/21 22:36:13 petere Exp $
+# $Header: /cvsroot/pgsql/src/makefiles/Makefile.solaris,v 1.4 2000/10/27 23:59:39 petere Exp $
 
 AROPT = crs
 
 ifeq ($(with_gnu_ld), yes)
 export_dynamic = -Wl,-E
+rpath = -Wl,-rpath,$(libdir)
+else
+rpath = -Wl,-R$(libdir)
 endif
 
+
 DLSUFFIX = .so
 ifeq ($(GCC), yes)
 CFLAGS_SL = -fPIC

src/makefiles/Makefile.solaris

@@ -1,5 +1,6 @@
 AROPT = crs
 export_dynamic = -Wl,-Bexport
+rpath = -Wl,-R$(libdir)
 DLSUFFIX = .so
 ifeq ($(GCC), yes)
 CFLAGS_SL = -fpic