Various changes to support building shared lib{g,stdc}++

diff --git a/config/.Sanitize b/config/.Sanitize
index 28343912c698ffbb640870116b42a77673685d2c..a3b9ce7f085fa49d6f251821c61ecf22e7edd5d1 100644 (file)
--- a/config/.Sanitize
+++ b/config/.Sanitize
@@ -59,6 +59,12 @@ mh-sysv
 mh-sysv4
 mh-vaxult2
 mt-v810
+mt-x86pic
+mt-papic
+mt-sparcpic
+mh-papic
+mh-x86pic
+mh-sparcpic
 
 Things-to-lose:
 

diff --git a/config/mh-papic b/config/mh-papic
new file mode 100644 (file)
index 0000000..2a977f9
--- /dev/null
+++ b/config/mh-papic
@@ -0,0 +1,2 @@
+LIBCFLAGS=$(CFLAGS) -fPIC
+LIBCXXFLAGS=$(CXXFLAGS) -fPIC

diff --git a/config/mh-sparcpic b/config/mh-sparcpic
new file mode 100644 (file)
index 0000000..872d0fd
--- /dev/null
+++ b/config/mh-sparcpic
@@ -0,0 +1,2 @@
+LIBCFLAGS=$(CFLAGS) -fpic
+LIBCXXFLAGS=$(CXXFLAGS) -fpic

diff --git a/config/mh-x86pic b/config/mh-x86pic
new file mode 100644 (file)
index 0000000..872d0fd
--- /dev/null
+++ b/config/mh-x86pic
@@ -0,0 +1,2 @@
+LIBCFLAGS=$(CFLAGS) -fpic
+LIBCXXFLAGS=$(CXXFLAGS) -fpic

diff --git a/config/mt-papic b/config/mt-papic
new file mode 100644 (file)
index 0000000..958f78e
--- /dev/null
+++ b/config/mt-papic
@@ -0,0 +1,2 @@
+LIBCFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET) -fPIC
+LIBCXXFLAGS_FOR_TARGET=$(CXXFLAGS_FOR_TARGET) -fPIC

diff --git a/config/mt-sparcpic b/config/mt-sparcpic
new file mode 100644 (file)
index 0000000..72af316
--- /dev/null
+++ b/config/mt-sparcpic
@@ -0,0 +1,2 @@
+LIBCFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET) -fpic
+LIBCXXFLAGS_FOR_TARGET=$(CXXFLAGS_FOR_TARGET) -fpic

diff --git a/config/mt-x86pic b/config/mt-x86pic
new file mode 100644 (file)
index 0000000..72af316
--- /dev/null
+++ b/config/mt-x86pic
@@ -0,0 +1,2 @@
+LIBCFLAGS_FOR_TARGET=$(CFLAGS_FOR_TARGET) -fpic
+LIBCXXFLAGS_FOR_TARGET=$(CXXFLAGS_FOR_TARGET) -fpic

diff --git a/configure.in b/configure.in
index 7fd40e886dd3f3daf003bc43d1f1d37df5c95940..dcc98f744dbe8394525684f53b742e6005b19355 100644 (file)
--- a/configure.in
+++ b/configure.in
@@ -153,6 +153,30 @@ case "${host}" in
   ;;
 esac
 
+# We default to --with-shared on platforms where -fpic is meaningless.
+# Well, we don't yet, but we will.
+if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
+  case "${target}" in
+    alpha-dec-osf*)    enable_shared=yes ;;
+    mips-sgi-irix5*)   enable_shared=yes ;;
+    *)                 enable_shared=no ;;
+  esac
+fi
+
+if [ x${enable_shared} = xyes ]; then
+  waugh=
+  case "${host}" in
+    hppa*-*-*)         waugh=config/mh-papic ;;
+    i[345]86-*-*)      waugh=config/mh-x86pic ;;
+    *-*-*)             waugh=config/mh-${target_cpu}pic ;;
+  esac
+  if [ -n "${host_makefile_frag}" ] && [ -f ${srcdir}/${waugh} ]; then
+    cat ${srcdir}/${host_makefile_frag} > mh-frag
+    cat ${srcdir}/${waugh} >> mh-frag
+    host_makefile_frag=mh-frag
+  fi
+fi
+
 # per-target:
 
 case "${target}" in
@@ -498,6 +522,14 @@ if [ x${use_gnu_ld} = x ] ; then
   fi
 fi
 
+if [ x${enable_shared} = xyes ]; then
+  case "${target}" in
+    hppa*-*-*)         target_makefile_frag=config/mt-papic ;;
+    i[345]86-*-*)      target_makefile_frag=config/mt-x86pic ;;
+    *-*-*)             target_makefile_frag=config/mt-${target_cpu}pic ;;
+  esac
+fi
+
 #
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