/usr/src/gcc-4.7/debian/patches/gccgo-version.diff is in gcc-4.7-source 4.7.4-3ubuntu12.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | # DP: Omit the subminor number from the go libdir
Index: b/src/gcc/go/Make-lang.in
===================================================================
--- a/src/gcc/go/Make-lang.in
+++ b/src/gcc/go/Make-lang.in
@@ -243,7 +243,9 @@
$(TM_H) $(RTL_H) $(TREE_H) $(TM_P_H) output.h $(TARGET_H) \
$(COMMON_TARGET_H)
-CFLAGS-go/go-lang.o += -DDEFAULT_TARGET_VERSION=\"$(version)\" \
+short_version := $(shell echo $(version) | sed -r 's/([0-9]+\.[0-9]+).*/\1/')
+
+CFLAGS-go/go-lang.o += -DDEFAULT_TARGET_VERSION=\"$(short_version)\" \
-DDEFAULT_TARGET_MACHINE=\"$(target_noncanonical)\"
go/go-lang.o: go/go-lang.c $(CONFIG_H) $(SYSTEM_H) coretypes.h $(OPTS_H) \
$(TREE_H) $(GIMPLE_H) $(GGC_H) $(TOPLEV_H) debug.h options.h \
Index: b/src/libgo/Makefile.in
===================================================================
--- a/src/libgo/Makefile.in
+++ b/src/libgo/Makefile.in
@@ -411,14 +411,14 @@
SUFFIXES = .c .go .gox .o .obj .lo .a
@LIBGO_IS_RTEMS_TRUE@subdirs = testsuite
SUBDIRS = ${subdirs}
-gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
+short_version := $(shell sed -r 's/([0-9]+\.[0-9]+)\..*/\1/' $(top_srcdir)/../gcc/BASE-VER)
MAINT_CHARSET = latin1
mkinstalldirs = $(SHELL) $(toplevel_srcdir)/mkinstalldirs
PWD_COMMAND = $${PWDCMD-pwd}
STAMP = echo timestamp >
toolexecdir = $(glibgo_toolexecdir)
toolexeclibdir = $(glibgo_toolexeclibdir)
-toolexeclibgodir = $(nover_glibgo_toolexeclibdir)/go/$(gcc_version)/$(target_alias)
+toolexeclibgodir = $(nover_glibgo_toolexeclibdir)/go/$(short_version)
WARN_CFLAGS = $(WARN_FLAGS) $(WERROR)
# -I/-D flags to pass when compiling.
Index: b/src/libgo/Makefile.am
===================================================================
--- a/src/libgo/Makefile.am
+++ b/src/libgo/Makefile.am
@@ -15,7 +15,7 @@
SUBDIRS = ${subdirs}
-gcc_version := $(shell cat $(top_srcdir)/../gcc/BASE-VER)
+short_version := $(shell sed -r 's/([0-9]+\.[0-9]+)\..*/\1/' $(top_srcdir)/../gcc/BASE-VER)
MAINT_CHARSET = latin1
@@ -25,7 +25,7 @@
toolexecdir = $(glibgo_toolexecdir)
toolexeclibdir = $(glibgo_toolexeclibdir)
-toolexeclibgodir = $(nover_glibgo_toolexeclibdir)/go/$(gcc_version)/$(target_alias)
+toolexeclibgodir = $(nover_glibgo_toolexeclibdir)/go/$(short_version)
LIBFFI = @LIBFFI@
LIBFFIINCS = @LIBFFIINCS@
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