ENH: remove -fPIC for AIX gnu

Templates/cconfigure

@@ -2775,8 +2775,11 @@ export CMAKE_MODULE_SUFFIX
 if test $ac_cv_prog_gcc = yes; then
   CMAKE_SHLIB_CFLAGS="-fPIC"
 fi
-# if running on cygwin remove -fPIC flag
+# if running on cygwin, AIX, or Darwin remove -fPIC flag
 case $system in 
+  AIX-*)
+    CMAKE_SHLIB_CFLAGS=""
+    ;;
   CYGWIN_NT*)
     CMAKE_SHLIB_CFLAGS=""
     ;;
@@ -2840,17 +2843,17 @@ for ac_hdr in sys/prctl.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2844: checking for $ac_hdr" >&5
+echo "configure:2847: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2849 "configure"
+#line 2852 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2854: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2857: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2895,17 +2898,17 @@ for ac_hdr in pthread.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
-echo "configure:2899: checking for $ac_hdr" >&5
+echo "configure:2902: checking for $ac_hdr" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2904 "configure"
+#line 2907 "configure"
 #include "confdefs.h"
 #include <$ac_hdr>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:2909: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:2912: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -2934,7 +2937,7 @@ done
 if test "$use_pthreads" = "yes"; then
   if test "$use_sproc" = "no"; then
     echo $ac_n "checking for pthread_create in -lpthreads""... $ac_c" 1>&6
-echo "configure:2938: checking for pthread_create in -lpthreads" >&5
+echo "configure:2941: checking for pthread_create in -lpthreads" >&5
 ac_lib_var=`echo pthreads'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2942,7 +2945,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthreads  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2946 "configure"
+#line 2949 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2953,7 +2956,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:2957: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:2960: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2974,7 +2977,7 @@ else
 fi
 
     echo $ac_n "checking for pthread_create in -lpthread""... $ac_c" 1>&6
-echo "configure:2978: checking for pthread_create in -lpthread" >&5
+echo "configure:2981: checking for pthread_create in -lpthread" >&5
 ac_lib_var=`echo pthread'_'pthread_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2982,7 +2985,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lpthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2986 "configure"
+#line 2989 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -2993,7 +2996,7 @@ int main() {
 pthread_create()
 ; return 0; }
 EOF
-if { (eval echo configure:2997: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3000: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3016,7 +3019,7 @@ fi
 # Work around Solaris 5.6 and 5.7 bug:
     if test "`uname -s -r`" = "SunOS 5.6"; then
       echo $ac_n "checking for thr_create in -lthread""... $ac_c" 1>&6
-echo "configure:3020: checking for thr_create in -lthread" >&5
+echo "configure:3023: checking for thr_create in -lthread" >&5
 ac_lib_var=`echo thread'_'thr_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3024,7 +3027,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3028 "configure"
+#line 3031 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3035,7 +3038,7 @@ int main() {
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3039: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3042: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3058,7 +3061,7 @@ fi
     fi
     if test "`uname -s -r`" = "SunOS 5.7"; then
       echo $ac_n "checking for thr_create in -lthread""... $ac_c" 1>&6
-echo "configure:3062: checking for thr_create in -lthread" >&5
+echo "configure:3065: checking for thr_create in -lthread" >&5
 ac_lib_var=`echo thread'_'thr_create | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3066,7 +3069,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lthread  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3070 "configure"
+#line 3073 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -3077,7 +3080,7 @@ int main() {
 thr_create()
 ; return 0; }
 EOF
-if { (eval echo configure:3081: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:3084: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3171,7 +3174,7 @@ do
 # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:3175: checking for $ac_word" >&5
+echo "configure:3178: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_CMAKE_AR_TMP'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else

Templates/cconfigure.in

@@ -465,8 +465,11 @@ export CMAKE_MODULE_SUFFIX
 if test $ac_cv_prog_gcc = yes; then
   CMAKE_SHLIB_CFLAGS="-fPIC"
 fi
-# if running on cygwin remove -fPIC flag
+# if running on cygwin, AIX, or Darwin remove -fPIC flag
 case $system in 
+  AIX-*)
+    CMAKE_SHLIB_CFLAGS=""
+    ;;
   CYGWIN_NT*)
     CMAKE_SHLIB_CFLAGS=""
     ;;