TODO : voir si BOOT_CFLAGS vraiment nécessaire... à priori non.
       + voir si GOCFLAGS_FOR_TARGET peut être surchargé par le Makefile de libgo

--- old/Makefile.in	2016-10-04 10:30:56 +0200
+++ new/Makefile.in	2016-10-04 10:31:55 +0200
@@ -364,7 +364,8 @@
 
 # Flags to pass to stage2 and later makes.  They are defined
 # here so that they can be overridden by Makefile fragments.
-BOOT_CFLAGS= -g -O2
+# TODO : fno-section-anchors only required for AIX
+BOOT_CFLAGS= -g -O2 -DNO_DOLLAR_IN_LABEL_FOR_GO -fno-section-anchors
 BOOT_LDFLAGS=
 BOOT_ADAFLAGS= -gnatpg
 
@@ -553,7 +553,8 @@
 LIBCFLAGS_FOR_TARGET = $(CFLAGS_FOR_TARGET)
 LIBCXXFLAGS_FOR_TARGET = $(CXXFLAGS_FOR_TARGET) -fno-implicit-templates
 LDFLAGS_FOR_TARGET = @LDFLAGS_FOR_TARGET@
-GOCFLAGS_FOR_TARGET = -O2 -g
+# TODO : fno-section-anchors only required for AIX
+GOCFLAGS_FOR_TARGET = -O2 -g -DNO_DOLLAR_IN_LABEL_FOR_GO -fno-section-anchors
 
 FLAGS_FOR_TARGET = @FLAGS_FOR_TARGET@
 SYSROOT_CFLAGS_FOR_TARGET = @SYSROOT_CFLAGS_FOR_TARGET@


--- ./libgo/testsuite/gotest.ORIGIN	2017-03-17 10:57:38 -0500
+++ ./libgo/testsuite/gotest	2017-03-17 10:54:16 -0500
@@ -19,6 +19,7 @@
 GL=${GL:-${GC-gccgo}}
 GOLIBS=${GOLIBS:-}
 export GC GL GOLIBS
+GL="${GL} -fno-section-anchors -Wl,-bernotok"
 
 NM=${NM:-nm}
 
@@ -408,9 +409,9 @@
 #   // gotest: $GC foo.go
 # to build any test-only dependencies.
 holdGC="$GC"
-GC="$GC -g -c -I ."
+GC="$GC -g -c -I . -fno-section-anchors"
 sed -n 's/^\/\/ gotest: //p' $gofiles | sh
-GC="$holdGC"
+GC="$holdGC -fno-section-anchors"
 
 case "x$pkgfiles" in
 x)