X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=libgfortran%2Fconfigure;h=e1592f732492de2c9aa27c3a5749d6c85aa5d500;hb=5cd614ceccbeba752d4d480789175ffb88a818e5;hp=17d7570e26c899d22442f2d6faffc82e1c2cdce8;hpb=581d232670be67eb51d3839c43f1113507a89185;p=gcc.git

diff --git a/libgfortran/configure b/libgfortran/configure
index 17d7570e26c..e1592f73249 100755
--- a/libgfortran/configure
+++ b/libgfortran/configure
@@ -641,6 +641,8 @@ RANLIB
 AR
 AS
 SECTION_FLAGS
+LIBGFOR_MINIMAL_FALSE
+LIBGFOR_MINIMAL_TRUE
 LIBGFOR_USE_SYMVER_SUN_FALSE
 LIBGFOR_USE_SYMVER_SUN_TRUE
 LIBGFOR_USE_SYMVER_GNU_FALSE
@@ -5895,6 +5897,25 @@ else
 fi
 
 
+# For GPU offloading, not everything in libfortran can be supported.
+# Currently, the only target that has this problem is nvptx.  The
+# following is a (partial) list of features that are unsupportable on
+# this particular target:
+# * Constructors
+# * alloca
+# * C library support for I/O, with printf as the one notable exception
+# * C library support for other features such as signal, environment
+#   variables, time functions
+
+ if test "x${target_cpu}" = xnvptx; then
+  LIBGFOR_MINIMAL_TRUE=
+  LIBGFOR_MINIMAL_FALSE='#'
+else
+  LIBGFOR_MINIMAL_TRUE='#'
+  LIBGFOR_MINIMAL_FALSE=
+fi
+
+
 # Figure out whether the compiler supports "-ffunction-sections -fdata-sections",
 # similarly to how libstdc++ does it
 ac_test_CFLAGS="${CFLAGS+set}"
@@ -10118,7 +10139,7 @@ _LT_EOF
       if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
 	 && test "$tmp_diet" = no
       then
-	tmp_addflag=
+	tmp_addflag=' $pic_flag'
 	tmp_sharedflag='-shared'
 	case $cc_basename,$host_cpu in
         pgcc*)				# Portland Group C compiler
@@ -12355,7 +12376,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12358 "configure"
+#line 12379 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12461,7 +12482,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12464 "configure"
+#line 12485 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -13967,7 +13988,7 @@ _LT_EOF
       if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
 	 && test "$tmp_diet" = no
       then
-	tmp_addflag=
+	tmp_addflag=' $pic_flag'
 	tmp_sharedflag='-shared'
 	case $cc_basename,$host_cpu in
         pgcc*)				# Portland Group C compiler
@@ -26067,7 +26088,9 @@ $as_echo "#define HAVE_FPSETMASK 1" >>confdefs.h
   fi
 
 ac_fn_c_check_type "$LINENO" "fp_except" "ac_cv_type_fp_except" "
+#ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
+#endif
 #include <math.h>
 
 "
@@ -26080,7 +26103,9 @@ _ACEOF
 
 fi
 ac_fn_c_check_type "$LINENO" "fp_except_t" "ac_cv_type_fp_except_t" "
+#ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
+#endif
 #include <math.h>
 
 "
@@ -26094,7 +26119,9 @@ _ACEOF
 fi
 
 ac_fn_c_check_type "$LINENO" "fp_rnd" "ac_cv_type_fp_rnd" "
+#ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
+#endif
 #include <math.h>
 
 "
@@ -26107,7 +26134,9 @@ _ACEOF
 
 fi
 ac_fn_c_check_type "$LINENO" "fp_rnd_t" "ac_cv_type_fp_rnd_t" "
+#ifdef HAVE_IEEEFP_H
 #include <ieeefp.h>
+#endif
 #include <math.h>
 
 "
@@ -26814,6 +26843,10 @@ if test -z "${LIBGFOR_USE_SYMVER_SUN_TRUE}" && test -z "${LIBGFOR_USE_SYMVER_SUN
   as_fn_error "conditional \"LIBGFOR_USE_SYMVER_SUN\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5
 fi
+if test -z "${LIBGFOR_MINIMAL_TRUE}" && test -z "${LIBGFOR_MINIMAL_FALSE}"; then
+  as_fn_error "conditional \"LIBGFOR_MINIMAL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
 if test -z "${LIBGFOR_BUILD_QUAD_TRUE}" && test -z "${LIBGFOR_BUILD_QUAD_FALSE}"; then
   as_fn_error "conditional \"LIBGFOR_BUILD_QUAD\" was never defined.
 Usually this means the macro was only invoked conditionally." "$LINENO" 5