PR modula2/111956 Many powerpc platforms do _not_ have support for IEEE754

This patch corrects commit
r14-4149-g81d5ca0b9b8431f1bd7a5ec8a2c94f04bb0cf032 which assummed
all powerpc platforms would have IEEE754 long double.  The patch
ensures that cc1gm2 obtains the default IEEE754 long double availability
from the configure generated tm_defines.  The user command
line switches -mabi=ibmlongdouble and -mabi=ieeelongdouble are implemented
to override the configuration defaults.

Bootstrapped on power8 and power9 machines.

gcc/m2/ChangeLog:

	PR modula2/111956
	* Make-lang.in (host_mc_longreal): Remove.
	* configure: Regenerate.
	* configure.ac (M2C_LONGREAL_FLOAT128): Remove.
	(M2C_LONGREAL_PPC64LE): Remove.
	* gm2-compiler/M2Options.def (SetIBMLongDouble): New procedure.
	(GetIBMLongDouble): New procedure function.
	(SetIEEELongDouble): New procedure.
	(GetIEEELongDouble): New procedure function.
	* gm2-compiler/M2Options.mod (SetIBMLongDouble): New procedure.
	(GetIBMLongDouble): New procedure function.
	(SetIEEELongDouble): New procedure.
	(GetIEEELongDouble): New procedure function.
	(InitializeLongDoubleFlags): New procedure called during
	module block initialization.
	* gm2-gcc/m2configure.cc: Remove duplicate includes.
	(m2configure_M2CLongRealFloat128): Remove.
	(m2configure_M2CLongRealIBM128): Remove.
	(m2configure_M2CLongRealLongDouble): Remove.
	(m2configure_M2CLongRealLongDoublePPC64LE): Remove.
	(m2configure_TargetIEEEQuadDefault): New function.
	* gm2-gcc/m2configure.def (M2CLongRealFloat128): Remove.
	(M2CLongRealIBM128): Remove.
	(M2CLongRealLongDouble): Remove.
	(M2CLongRealLongDoublePPC64LE): Remove.
	(TargetIEEEQuadDefault): New function.
	* gm2-gcc/m2configure.h (m2configure_M2CLongRealFloat128): Remove.
	(m2configure_M2CLongRealIBM128): Remove.
	(m2configure_M2CLongRealLongDouble): Remove.
	(m2configure_M2CLongRealLongDoublePPC64LE): Remove.
	(m2configure_TargetIEEEQuadDefault): New function.
	* gm2-gcc/m2options.h (M2Options_SetIBMLongDouble): New prototype.
	(M2Options_GetIBMLongDouble): New prototype.
	(M2Options_SetIEEELongDouble): New prototype.
	(M2Options_GetIEEELongDouble): New prototype.
	* gm2-gcc/m2type.cc (build_m2_long_real_node): Re-implement using
	results of M2Options_GetIBMLongDouble and M2Options_GetIEEELongDouble.
	* gm2-lang.cc (gm2_langhook_handle_option): Add case
	OPT_mabi_ibmlongdouble and call M2Options_SetIBMLongDouble.
	Add case OPT_mabi_ieeelongdouble and call M2Options_SetIEEELongDouble.
	* gm2config.aci.in: Regenerate.
	* gm2spec.cc (lang_specific_driver): Remove block defined by
	M2C_LONGREAL_PPC64LE.
	Remove case OPT_mabi_ibmlongdouble.
	Remove case OPT_mabi_ieeelongdouble.

libgm2/ChangeLog:

	PR modula2/111956
	* Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* Makefile.in: Regenerate.
	* libm2cor/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2cor/Makefile.in: Regenerate.
	* libm2iso/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2iso/Makefile.in: Regenerate.
	* libm2log/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2log/Makefile.in: Regenerate.
	* libm2min/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2min/Makefile.in: Regenerate.
	* libm2pim/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2pim/Makefile.in: Regenerate.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>

12 files changed, 26 insertions, 49 deletions

diff --git a/libgm2/Makefile.am b/libgm2/Makefile.am
index 72391d01291..ef29732dbed 100644
--- a/libgm2/Makefile.am
+++ b/libgm2/Makefile.am
@@ -35,8 +35,6 @@ AM_CFLAGS = -I $(srcdir)/../libgcc -I $(MULTIBUILDTOP)../../gcc/include
 gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
 TOP_GCCDIR := $(shell cd $(top_srcdir) && cd .. && pwd)
 
-TARGET_LONGDOUBLE_ABI := $(if $(strip $(filter powerpc64le%,$(target))),-mabi=ieeelongdouble)
-
 GCC_DIR = $(TOP_GCCDIR)/gcc
 GM2_SRC = $(GCC_DIR)/m2
 
@@ -101,7 +99,6 @@ AM_MAKEFLAGS = \
 	"WERROR=$(WERROR)" \
         "TARGET_LIB_PATH=$(TARGET_LIB_PATH)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
 	"LIBTOOL=$(GM2_BUILDDIR)/libtool" \
 	"DARWIN_AT_RPATH=$(DARWIN_AT_RPATH)"
 
diff --git a/libgm2/Makefile.in b/libgm2/Makefile.in
index 4c30d2b034f..f259df7842c 100644
--- a/libgm2/Makefile.in
+++ b/libgm2/Makefile.in
@@ -347,7 +347,6 @@ MAKEOVERRIDES =
 AM_CFLAGS = -I $(srcdir)/../libgcc -I $(MULTIBUILDTOP)../../gcc/include
 gcc_version := $(shell @get_gcc_base_ver@ $(top_srcdir)/../gcc/BASE-VER)
 TOP_GCCDIR := $(shell cd $(top_srcdir) && cd .. && pwd)
-TARGET_LONGDOUBLE_ABI := $(if $(strip $(filter powerpc64le%,$(target))),-mabi=ieeelongdouble)
 GCC_DIR = $(TOP_GCCDIR)/gcc
 GM2_SRC = $(GCC_DIR)/m2
 SUBDIRS = libm2min libm2log libm2cor libm2iso libm2pim
@@ -403,7 +402,6 @@ AM_MAKEFLAGS = \
 	"WERROR=$(WERROR)" \
         "TARGET_LIB_PATH=$(TARGET_LIB_PATH)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
 	"LIBTOOL=$(GM2_BUILDDIR)/libtool" \
 	"DARWIN_AT_RPATH=$(DARWIN_AT_RPATH)"
 
diff --git a/libgm2/libm2cor/Makefile.am b/libgm2/libm2cor/Makefile.am
index a515bd2c886..edf9243a5b8 100644
--- a/libgm2/libm2cor/Makefile.am
+++ b/libgm2/libm2cor/Makefile.am
@@ -91,7 +91,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 # Subdir rules rely on $(FLAGS_TO_PASS)
@@ -116,14 +115,14 @@ libm2cordir = libm2cor
 libm2cor_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2cor_la_SOURCES)))
 libm2cor_la_CFLAGS = \
     -I. -I.. -I$(GM2_SRC)/gm2-libs -I$(GM2_SRC)/gm2-libs-iso \
-    -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso \
-    $(TARGET_LONGDOUBLE_ABI)
+    -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso
+
 libm2cor_la_M2FLAGS = \
     -fm2-pathname=m2cor -I. -I$(GM2_SRC)/gm2-libs-coroutines \
     -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs \
     -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
-    -fm2-g -g -Wcase-enum -Wreturn-type -fcase -fm2-prefix=m2cor \
-    $(TARGET_LONGDOUBLE_ABI)
+    -fm2-g -g -Wcase-enum -Wreturn-type -fcase -fm2-prefix=m2cor
+
 if TARGET_DARWIN
 libm2cor_la_link_flags = -Wl,-undefined,dynamic_lookup
 else
diff --git a/libgm2/libm2cor/Makefile.in b/libgm2/libm2cor/Makefile.in
index faf2433249f..63299388dd8 100644
--- a/libgm2/libm2cor/Makefile.in
+++ b/libgm2/libm2cor/Makefile.in
@@ -455,7 +455,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 
@@ -475,15 +474,13 @@ FLAGS_TO_PASS = $(AM_MAKEFLAGS)
 @BUILD_CORLIB_TRUE@libm2cor_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2cor_la_SOURCES)))
 @BUILD_CORLIB_TRUE@libm2cor_la_CFLAGS = \
 @BUILD_CORLIB_TRUE@    -I. -I.. -I$(GM2_SRC)/gm2-libs -I$(GM2_SRC)/gm2-libs-iso \
-@BUILD_CORLIB_TRUE@    -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso \
-@BUILD_CORLIB_TRUE@    $(TARGET_LONGDOUBLE_ABI)
+@BUILD_CORLIB_TRUE@    -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso
 
 @BUILD_CORLIB_TRUE@libm2cor_la_M2FLAGS = \
 @BUILD_CORLIB_TRUE@    -fm2-pathname=m2cor -I. -I$(GM2_SRC)/gm2-libs-coroutines \
 @BUILD_CORLIB_TRUE@    -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs \
 @BUILD_CORLIB_TRUE@    -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
-@BUILD_CORLIB_TRUE@    -fm2-g -g -Wcase-enum -Wreturn-type -fcase -fm2-prefix=m2cor \
-@BUILD_CORLIB_TRUE@    $(TARGET_LONGDOUBLE_ABI)
+@BUILD_CORLIB_TRUE@    -fm2-g -g -Wcase-enum -Wreturn-type -fcase -fm2-prefix=m2cor
 
 @BUILD_CORLIB_TRUE@@TARGET_DARWIN_FALSE@libm2cor_la_link_flags =  \
 @BUILD_CORLIB_TRUE@@TARGET_DARWIN_FALSE@	$(am__append_1)
diff --git a/libgm2/libm2iso/Makefile.am b/libgm2/libm2iso/Makefile.am
index 01b5dc7001a..ee9afde8516 100644
--- a/libgm2/libm2iso/Makefile.am
+++ b/libgm2/libm2iso/Makefile.am
@@ -90,7 +90,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 # Subdir rules rely on $(FLAGS_TO_PASS)
@@ -199,14 +198,14 @@ libm2iso_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2iso_la_
 libm2iso_la_CFLAGS = \
    $(C_INCLUDES) -I. -I.. -I$(GM2_SRC)/gm2-libs-iso -I$(GM2_SRC)/gm2-libs \
    -DBUILD_GM2_LIBS -I@srcdir@/../ -I../../../gcc -I$(GCC_DIR) -I$(GCC_DIR)/../include \
-   -I../../libgcc -I$(GCC_DIR)/../libgcc -I$(MULTIBUILDTOP)../../gcc/include \
-   $(TARGET_LONGDOUBLE_ABI)
+   -I../../libgcc -I$(GCC_DIR)/../libgcc -I$(MULTIBUILDTOP)../../gcc/include
+
 libm2iso_la_M2FLAGS = \
   -fm2-pathname=m2iso -I. -Ilibm2iso -I$(GM2_SRC)/gm2-libs-iso \
   -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs \
   -fiso -fextended-opaque -fm2-g -g -Wcase-enum \
-  -Wreturn-type -fcase -fm2-prefix=m2iso \
-   $(TARGET_LONGDOUBLE_ABI)
+  -Wreturn-type -fcase -fm2-prefix=m2iso
+
 if TARGET_DARWIN
 libm2iso_la_link_flags = -Wl,-undefined,dynamic_lookup
 else
diff --git a/libgm2/libm2iso/Makefile.in b/libgm2/libm2iso/Makefile.in
index 1d04835fbf0..964c6da8527 100644
--- a/libgm2/libm2iso/Makefile.in
+++ b/libgm2/libm2iso/Makefile.in
@@ -480,7 +480,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 
@@ -586,15 +585,13 @@ FLAGS_TO_PASS = $(AM_MAKEFLAGS)
 @BUILD_ISOLIB_TRUE@libm2iso_la_CFLAGS = \
 @BUILD_ISOLIB_TRUE@   $(C_INCLUDES) -I. -I.. -I$(GM2_SRC)/gm2-libs-iso -I$(GM2_SRC)/gm2-libs \
 @BUILD_ISOLIB_TRUE@   -DBUILD_GM2_LIBS -I@srcdir@/../ -I../../../gcc -I$(GCC_DIR) -I$(GCC_DIR)/../include \
-@BUILD_ISOLIB_TRUE@   -I../../libgcc -I$(GCC_DIR)/../libgcc -I$(MULTIBUILDTOP)../../gcc/include \
-@BUILD_ISOLIB_TRUE@   $(TARGET_LONGDOUBLE_ABI)
+@BUILD_ISOLIB_TRUE@   -I../../libgcc -I$(GCC_DIR)/../libgcc -I$(MULTIBUILDTOP)../../gcc/include
 
 @BUILD_ISOLIB_TRUE@libm2iso_la_M2FLAGS = \
 @BUILD_ISOLIB_TRUE@  -fm2-pathname=m2iso -I. -Ilibm2iso -I$(GM2_SRC)/gm2-libs-iso \
 @BUILD_ISOLIB_TRUE@  -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs \
 @BUILD_ISOLIB_TRUE@  -fiso -fextended-opaque -fm2-g -g -Wcase-enum \
-@BUILD_ISOLIB_TRUE@  -Wreturn-type -fcase -fm2-prefix=m2iso \
-@BUILD_ISOLIB_TRUE@   $(TARGET_LONGDOUBLE_ABI)
+@BUILD_ISOLIB_TRUE@  -Wreturn-type -fcase -fm2-prefix=m2iso
 
 @BUILD_ISOLIB_TRUE@@TARGET_DARWIN_FALSE@libm2iso_la_link_flags =  \
 @BUILD_ISOLIB_TRUE@@TARGET_DARWIN_FALSE@	$(am__append_1)
diff --git a/libgm2/libm2log/Makefile.am b/libgm2/libm2log/Makefile.am
index 8dadaae9538..ac690c89d2e 100644
--- a/libgm2/libm2log/Makefile.am
+++ b/libgm2/libm2log/Makefile.am
@@ -90,7 +90,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 # Subdir rules rely on $(FLAGS_TO_PASS)
@@ -138,8 +137,8 @@ libm2log_la_M2FLAGS = \
  -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs \
  -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
  -Wcase-enum -Wreturn-type \
- -fcase -fm2-prefix=m2log \
- $(TARGET_LONGDOUBLE_ABI)
+ -fcase -fm2-prefix=m2log
+
 if TARGET_DARWIN
 libm2log_la_link_flags = -Wl,-undefined,dynamic_lookup
 else
diff --git a/libgm2/libm2log/Makefile.in b/libgm2/libm2log/Makefile.in
index 4c371350ce2..bd0f834bdf0 100644
--- a/libgm2/libm2log/Makefile.in
+++ b/libgm2/libm2log/Makefile.in
@@ -443,7 +443,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 
@@ -487,8 +486,7 @@ FLAGS_TO_PASS = $(AM_MAKEFLAGS)
 @BUILD_LOGLIB_TRUE@ -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs \
 @BUILD_LOGLIB_TRUE@ -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
 @BUILD_LOGLIB_TRUE@ -Wcase-enum -Wreturn-type \
-@BUILD_LOGLIB_TRUE@ -fcase -fm2-prefix=m2log \
-@BUILD_LOGLIB_TRUE@ $(TARGET_LONGDOUBLE_ABI)
+@BUILD_LOGLIB_TRUE@ -fcase -fm2-prefix=m2log
 
 @BUILD_LOGLIB_TRUE@@TARGET_DARWIN_FALSE@libm2log_la_link_flags =  \
 @BUILD_LOGLIB_TRUE@@TARGET_DARWIN_FALSE@	$(am__append_1)
diff --git a/libgm2/libm2min/Makefile.am b/libgm2/libm2min/Makefile.am
index ab627e88222..b95b5dd3ea5 100644
--- a/libgm2/libm2min/Makefile.am
+++ b/libgm2/libm2min/Makefile.am
@@ -89,7 +89,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 # Subdir rules rely on $(FLAGS_TO_PASS)
@@ -104,12 +103,12 @@ libm2mindir = libm2min
 toolexeclib_LTLIBRARIES = libm2min.la
 libm2min_la_SOURCES = $(M2MODS) libc.c
 libm2min_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2min_la_SOURCES)))
-libm2min_la_CFLAGS = -I. -I$(GM2_SRC)/gm2-libs-min -I$(GM2_SRC)/gm2-libs $(TARGET_LONGDOUBLE_ABI)
+libm2min_la_CFLAGS = -I. -I$(GM2_SRC)/gm2-libs-min -I$(GM2_SRC)/gm2-libs
 libm2min_la_M2FLAGS = \
    -fm2-pathname=m2min -I. -I$(GM2_SRC)/gm2-libs-min \
    -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs -fno-exceptions \
-   -fno-m2-plugin -fno-scaffold-dynamic -fno-scaffold-main -fm2-prefix=m2min \
-   $(TARGET_LONGDOUBLE_ABI)
+   -fno-m2-plugin -fno-scaffold-dynamic -fno-scaffold-main -fm2-prefix=m2min
+
 if TARGET_DARWIN
 libm2min_la_link_flags = -Wl,-undefined,dynamic_lookup
 else
diff --git a/libgm2/libm2min/Makefile.in b/libgm2/libm2min/Makefile.in
index 1d723e4d721..453a3acf468 100644
--- a/libgm2/libm2min/Makefile.in
+++ b/libgm2/libm2min/Makefile.in
@@ -432,7 +432,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 
@@ -446,12 +445,11 @@ libm2mindir = libm2min
 toolexeclib_LTLIBRARIES = libm2min.la
 libm2min_la_SOURCES = $(M2MODS) libc.c
 libm2min_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2min_la_SOURCES)))
-libm2min_la_CFLAGS = -I. -I$(GM2_SRC)/gm2-libs-min -I$(GM2_SRC)/gm2-libs $(TARGET_LONGDOUBLE_ABI)
+libm2min_la_CFLAGS = -I. -I$(GM2_SRC)/gm2-libs-min -I$(GM2_SRC)/gm2-libs
 libm2min_la_M2FLAGS = \
    -fm2-pathname=m2min -I. -I$(GM2_SRC)/gm2-libs-min \
    -fm2-pathname=m2pim -I$(GM2_SRC)/gm2-libs -fno-exceptions \
-   -fno-m2-plugin -fno-scaffold-dynamic -fno-scaffold-main -fm2-prefix=m2min \
-   $(TARGET_LONGDOUBLE_ABI)
+   -fno-m2-plugin -fno-scaffold-dynamic -fno-scaffold-main -fm2-prefix=m2min
 
 @TARGET_DARWIN_FALSE@libm2min_la_link_flags = $(am__append_1)
 @TARGET_DARWIN_TRUE@libm2min_la_link_flags =  \
diff --git a/libgm2/libm2pim/Makefile.am b/libgm2/libm2pim/Makefile.am
index 4c5e046a1c9..b575cabe2db 100644
--- a/libgm2/libm2pim/Makefile.am
+++ b/libgm2/libm2pim/Makefile.am
@@ -88,7 +88,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 # Subdir rules rely on $(FLAGS_TO_PASS)
@@ -168,14 +167,14 @@ libm2pimdir = libm2pim
 libm2pim_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2pim_la_SOURCES)))
 libm2pim_la_CFLAGS = \
   -I. -I.. -I$(GM2_SRC)/gm2-libs -I$(GM2_SRC)/gm2-libs-iso \
-  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso \
-  $(TARGET_LONGDOUBLE_ABI)
+  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso
+
 libm2pim_la_M2FLAGS = \
   -fm2-pathname=m2pim -I. -I$(GM2_SRC)/gm2-libs \
   -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
   -fm2-g -g -Wcase-enum -Wreturn-type \
-  -fcase -fm2-prefix=m2pim \
-  $(TARGET_LONGDOUBLE_ABI)
+  -fcase -fm2-prefix=m2pim
+
 if TARGET_DARWIN
 libm2pim_la_link_flags = -Wl,-undefined,dynamic_lookup
 else
diff --git a/libgm2/libm2pim/Makefile.in b/libgm2/libm2pim/Makefile.in
index eca7e8501ad..85623d0f82f 100644
--- a/libgm2/libm2pim/Makefile.in
+++ b/libgm2/libm2pim/Makefile.in
@@ -467,7 +467,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 
@@ -545,15 +544,13 @@ FLAGS_TO_PASS = $(AM_MAKEFLAGS)
 @BUILD_PIMLIB_TRUE@libm2pim_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2pim_la_SOURCES)))
 @BUILD_PIMLIB_TRUE@libm2pim_la_CFLAGS = \
 @BUILD_PIMLIB_TRUE@  -I. -I.. -I$(GM2_SRC)/gm2-libs -I$(GM2_SRC)/gm2-libs-iso \
-@BUILD_PIMLIB_TRUE@  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso \
-@BUILD_PIMLIB_TRUE@  $(TARGET_LONGDOUBLE_ABI)
+@BUILD_PIMLIB_TRUE@  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso
 
 @BUILD_PIMLIB_TRUE@libm2pim_la_M2FLAGS = \
 @BUILD_PIMLIB_TRUE@  -fm2-pathname=m2pim -I. -I$(GM2_SRC)/gm2-libs \
 @BUILD_PIMLIB_TRUE@  -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
 @BUILD_PIMLIB_TRUE@  -fm2-g -g -Wcase-enum -Wreturn-type \
-@BUILD_PIMLIB_TRUE@  -fcase -fm2-prefix=m2pim \
-@BUILD_PIMLIB_TRUE@  $(TARGET_LONGDOUBLE_ABI)
+@BUILD_PIMLIB_TRUE@  -fcase -fm2-prefix=m2pim
 
 @BUILD_PIMLIB_TRUE@@TARGET_DARWIN_FALSE@libm2pim_la_link_flags =  \
 @BUILD_PIMLIB_TRUE@@TARGET_DARWIN_FALSE@	$(am__append_1)