5 files changed, 17 insertions, 6 deletions
diff --git a/common/Makefile.am b/common/Makefile.am
index df90b8e..925f717 100644
--- a/common/Makefile.am
+++ b/common/Makefile.am
@@ -20,7 +20,7 @@
 noinst_LIBRARIES = libtio.a libprot.a libdict.a libexpr.a
 
 AM_CPPFLAGS=-I$(top_srcdir)
-AM_CFLAGS = -fPIC
+AM_CFLAGS = $(PIC_CFLAGS)
 
 libtio_a_SOURCES = tio.c tio.h
 
diff --git a/compat/Makefile.am b/compat/Makefile.am
index bc8e4cc..0e7ad69 100644
--- a/compat/Makefile.am
+++ b/compat/Makefile.am
@@ -20,7 +20,7 @@
 noinst_LIBRARIES = libcompat.a
 
 AM_CPPFLAGS=-I$(top_srcdir)
-AM_CFLAGS = -fPIC
+AM_CFLAGS = $(PIC_CFLAGS)
 
 EXTRA_DIST = getopt_long.c getopt_long.h \
              ether.c ether.h \
diff --git a/configure.ac b/configure.ac
index a0b85c2..92be7f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -106,9 +106,8 @@ AC_ARG_ENABLE(debug,
                              [enable extensive debugging and logging]),
               [if test "x$enableval" != "xno" ; then CFLAGS="-g -DDEBUG $CFLAGS" ; fi])
 
-DESIRED_CFLAGS=""
-
 # check for extra compiler warnings
+DESIRED_CFLAGS=""
 AC_ARG_ENABLE(warnings,
               AS_HELP_STRING([--enable-warnings],
                              [enable extra compiler warnings (gcc)]),
@@ -136,6 +135,18 @@ do
   fi
 done
 
+# check for Position Independent Code compiler option
+PIC_CFLAGS=""
+if test "$ac_cv_prog_gcc" = "yes"
+then
+  PIC_CFLAGS="-fPIC"
+else
+  case "$target_os" in
+    sysv5*) PIC_CFLAGS="-KPIC" ;;
+  esac
+fi
+AC_SUBST(PIC_CFLAGS)
+
 # add --disable-maintainer-mode option
 AM_MAINTAINER_MODE([enable])
 
diff --git a/nss/Makefile.am b/nss/Makefile.am
index 1a8f35a..5a2967f 100644
--- a/nss/Makefile.am
+++ b/nss/Makefile.am
@@ -23,7 +23,7 @@
 noinst_PROGRAMS = nss_ldap.so
 
 AM_CPPFLAGS=-I$(top_srcdir)
-AM_CFLAGS = -fPIC
+AM_CFLAGS = $(PIC_CFLAGS)
 
 nss_ldap_so_SOURCES = common.c common.h prototypes.h solnss.h \
                       ../nslcd.h ../common/nslcd-prot.h \
diff --git a/pam/Makefile.am b/pam/Makefile.am
index ce2fabf..f054e04 100644
--- a/pam/Makefile.am
+++ b/pam/Makefile.am
@@ -21,7 +21,7 @@
 noinst_PROGRAMS = pam_ldap.so
 
 AM_CPPFLAGS=-I$(top_srcdir)
-AM_CFLAGS = -fPIC
+AM_CFLAGS = $(PIC_CFLAGS)
 
 pam_ldap_so_SOURCES = ../nslcd.h ../common/nslcd-prot.h \
                       ../compat/attrs.h pam.c common.h