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-rw-r--r--gnu/packages/patches/bc-fix-cross-compilation.patch171
1 files changed, 171 insertions, 0 deletions
diff --git a/gnu/packages/patches/bc-fix-cross-compilation.patch b/gnu/packages/patches/bc-fix-cross-compilation.patch
new file mode 100644
index 0000000000..14dfecdbde
--- /dev/null
+++ b/gnu/packages/patches/bc-fix-cross-compilation.patch
@@ -0,0 +1,171 @@
+Patch taken from nix.
+
+commit fdda59736ddc048cf38a2c7103f4f5d9eeaf995e
+Author: Ben Gamari <ben@smart-cactus.org>
+Date: Tue Oct 17 10:51:34 2017 -0400
+
+ Try implementing cross-compilation
+
+diff --git a/bc/Makefile.am b/bc/Makefile.am
+index d9d412e..fdef633 100644
+--- a/bc/Makefile.am
++++ b/bc/Makefile.am
+@@ -17,6 +17,7 @@ MAINTAINERCLEANFILES = Makefile.in bc.c bc.h scan.c \
+
+ AM_CPPFLAGS = -I$(srcdir) -I$(srcdir)/../h
+ LIBBC = ../lib/libbc.a
++LIBBC_HOST = ../lib/libbc_host.a
+ LIBL = @LEXLIB@
+ LDADD = $(LIBBC) $(LIBL) @READLINELIB@
+
+@@ -29,12 +30,20 @@ $(PROGRAMS): libmath.h $(LIBBC)
+ scan.o: bc.h
+ global.o: libmath.h
++
++main_host.c : main.c
++ cp $< $@
+
+-fbcOBJ = main.o bc.o scan.o execute.o load.o storage.o util.o warranty.o
++fbcOBJ = $(addsuffix _host,main.o bc.o scan.o execute.o load.o storage.o util.o warranty.o)
++
++%.o_host : CC:=$(CC_FOR_BUILD)
++
++%.o_host : %.c
++ $(COMPILE) -c $(CFLAGS) $(INCLUDES) -o $@ $<
+
+-libmath.h: libmath.b $(fbcOBJ) $(LIBBC)
++libmath.h: libmath.b $(fbcOBJ) $(LIBBC_HOST)
+ echo '{0}' > libmath.h
+- $(MAKE) global.o
+- $(LINK) -o fbc $(fbcOBJ) global.o $(LIBBC) $(LIBL) $(READLINELIB) $(LIBS)
++ $(MAKE) global.o_host
++ $(CC_FOR_BUILD) -o fbc $(fbcOBJ) global.o_host $(LIBBC_HOST) $(LIBL) ${READLINELIB} $(LIBS)
+ ./fbc -c $(srcdir)/libmath.b </dev/null >libmath.h
+ $(srcdir)/fix-libmath_h
+ rm -f ./fbc ./global.o
+diff --git a/configure.ac b/configure.ac
+index fc74573..5cabb73 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -20,6 +20,7 @@ m4_define([dc_version], 1.4.1)
+
+ AC_INIT([bc],[bc_version])
+ AC_CONFIG_SRCDIR(doc/bc.1)
++AC_CONFIG_MACRO_DIR([m4])
+ AM_INIT_AUTOMAKE([dist-bzip2])
+ AC_CONFIG_HEADERS(config.h)
+
+@@ -35,6 +36,7 @@ AC_DEFINE([DC_COPYRIGHT],
+ [Define the dc copyright line.])
+
+ AC_PROG_CC
++AX_CC_FOR_BUILD
+ AC_USE_SYSTEM_EXTENSIONS
+
+ AM_PROG_LEX
+diff --git a/lib/Makefile.am b/lib/Makefile.am
+index ec4bf59..c670f5b 100644
+--- a/lib/Makefile.am
++++ b/lib/Makefile.am
+@@ -1,5 +1,5 @@
+ ## Process this file with automake to produce Makefile.in
+-noinst_LIBRARIES = libbc.a
++noinst_LIBRARIES = libbc.a libbc_host.a
+
+ AM_CPPFLAGS = -I. -I.. -I$(srcdir)/../h
+
+@@ -24,3 +24,11 @@ testmul: testmul.o number.o
+
+ specialnumber: newnumber.o
+ cp newnumber.o number.o
++
++%.o_host : CC:=$(CC_FOR_BUILD)
++%.o_host : %.c
++ $(COMPILE) -c $(CFLAGS) $(INCLUDES) -o $@ $<
++
++libbc_host.a : $(addsuffix _host,$(libbc_a_OBJECTS))
++ ar cru $@ $+
++ ranlib $@
+diff --git a/m4/cc_for_build.m4 b/m4/cc_for_build.m4
+new file mode 100644
+index 0000000..c62ffad
+--- /dev/null
++++ b/m4/cc_for_build.m4
+@@ -0,0 +1,77 @@
++# ===========================================================================
++# https://www.gnu.org/software/autoconf-archive/ax_cc_for_build.html
++# ===========================================================================
++#
++# SYNOPSIS
++#
++# AX_CC_FOR_BUILD
++#
++# DESCRIPTION
++#
++# Find a build-time compiler. Sets CC_FOR_BUILD and EXEEXT_FOR_BUILD.
++#
++# LICENSE
++#
++# Copyright (c) 2010 Reuben Thomas <rrt@sc3d.org>
++# Copyright (c) 1999 Richard Henderson <rth@redhat.com>
++#
++# This program is free software: you can redistribute it and/or modify it
++# under the terms of the GNU General Public License as published by the
++# Free Software Foundation, either version 3 of the License, or (at your
++# option) any later version.
++#
++# This program is distributed in the hope that it will be useful, but
++# WITHOUT ANY WARRANTY; without even the implied warranty of
++# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
++# Public License for more details.
++#
++# You should have received a copy of the GNU General Public License along
++# with this program. If not, see <https://www.gnu.org/licenses/>.
++#
++# As a special exception, the respective Autoconf Macro's copyright owner
++# gives unlimited permission to copy, distribute and modify the configure
++# scripts that are the output of Autoconf when processing the Macro. You
++# need not follow the terms of the GNU General Public License when using
++# or distributing such scripts, even though portions of the text of the
++# Macro appear in them. The GNU General Public License (GPL) does govern
++# all other use of the material that constitutes the Autoconf Macro.
++#
++# This special exception to the GPL applies to versions of the Autoconf
++# Macro released by the Autoconf Archive. When you make and distribute a
++# modified version of the Autoconf Macro, you may extend this special
++# exception to the GPL to apply to your modified version as well.
++
++#serial 3
++
++dnl Get a default for CC_FOR_BUILD to put into Makefile.
++AC_DEFUN([AX_CC_FOR_BUILD],
++[# Put a plausible default for CC_FOR_BUILD in Makefile.
++if test -z "$CC_FOR_BUILD"; then
++ if test "x$cross_compiling" = "xno"; then
++ CC_FOR_BUILD='$(CC)'
++ else
++ CC_FOR_BUILD=gcc
++ fi
++fi
++AC_SUBST(CC_FOR_BUILD)
++# Also set EXEEXT_FOR_BUILD.
++if test "x$cross_compiling" = "xno"; then
++ EXEEXT_FOR_BUILD='$(EXEEXT)'
++else
++ AC_CACHE_CHECK([for build system executable suffix], bfd_cv_build_exeext,
++ [rm -f conftest*
++ echo 'int main () { return 0; }' > conftest.c
++ bfd_cv_build_exeext=
++ ${CC_FOR_BUILD} -o conftest conftest.c 1>&5 2>&5
++ for file in conftest.*; do
++ case $file in
++ *.c | *.o | *.obj | *.ilk | *.pdb) ;;
++ *) bfd_cv_build_exeext=`echo $file | sed -e s/conftest//` ;;
++ esac
++ done
++ rm -f conftest*
++ test x"${bfd_cv_build_exeext}" = x && bfd_cv_build_exeext=no])
++ EXEEXT_FOR_BUILD=""
++ test x"${bfd_cv_build_exeext}" != xno && EXEEXT_FOR_BUILD=${bfd_cv_build_exeext}
++fi
++AC_SUBST(EXEEXT_FOR_BUILD)])dnl