From 5844981147a4af48fc3ffb8d2794487f0236b335 Mon Sep 17 00:00:00 2001
From: Mohammad Akhlaghi <mohammad@akhlaghi.org>
Date: Thu, 29 Nov 2018 15:17:16 +0000
Subject: Ignoring building of GCC for pipeline

GNU Binutils (which provides the GNU Linker) is not ported to Mac OS
systems. GCC also takes a very long time to build, and if we are to still
have linking problems with LLVM's linker, it would be better to just ignore
GCC also and use the system's C compiler and linker together.

So for the time being, GCC isn't a main target of the basic dependencies
and won't be installed. But we have kept the rules that were checked on a
GNU/Linux operating system.
---
 reproduce/src/make/dependencies-basic.mk | 42 +++++++++++++++++++++++++-------
 1 file changed, 33 insertions(+), 9 deletions(-)

(limited to 'reproduce/src/make/dependencies-basic.mk')

diff --git a/reproduce/src/make/dependencies-basic.mk b/reproduce/src/make/dependencies-basic.mk
index 6bd389e..74ca429 100644
--- a/reproduce/src/make/dependencies-basic.mk
+++ b/reproduce/src/make/dependencies-basic.mk
@@ -63,7 +63,7 @@ export LDFLAGS           := -L$(ildir) $(LDFLAGS)
 export CPPFLAGS          := -I$(idir)/include $(CPPFLAGS)
 export LD_LIBRARY_PATH   := $(ildir):$(LD_LIBRARY_PATH)
 
-top-level-programs = gcc pkg-config
+top-level-programs = ls sed gawk grep diff find bash which pkg-config
 all: $(foreach p, $(top-level-programs), $(ibdir)/$(p))
 
 
@@ -168,13 +168,29 @@ $(tarballs): $(tdir)/%:
 # For the time being, we aren't building a local C compiler, but we'll use
 # any C compiler that the system already has and just make a symbolic link
 # to it.
-makelink = a=$$(which $(1) 2> /dev/null); \
+makelink = export PATH=$(syspath); a=$$(which $(1) 2> /dev/null); \
 	   if [ x$$a != x ]; then ln -s $$a $(ibdir)/$(1); fi
 $(ibdir):; mkdir $@
 $(ibdir)/low-level: | $(ibdir)
-        # We aren't building these low-levels tools yet ourselves. We'll
-        # thus just use what the host operating system has available.
-	PATH=$(syspath)
+        # The Assembler
+	$(call makelink,as)
+
+        # The compiler
+	$(call makelink,clang)
+	$(call makelink,gcc)
+	$(call makelink,g++)
+	$(call makelink,cc)
+
+        # The linker
+	$(call makelink,ar)
+	$(call makelink,ld)
+	$(call makelink,nm)
+	$(call makelink,ps)
+
+        # On Mac OS, libtool is different compared to GNU Libtool. The
+        # libtool we'll build in the high-level dependencies has the
+        # executable name `glibtool'.
+	$(call makelink,libtool)
 
         # GNU Gettext (translate messages)
 	$(call makelink,msgfmt)
@@ -328,8 +344,8 @@ endif
 
 
 
-# GCC prerequisites
-# -----------------
+# (CURRENTLY IGNORED) GCC prerequisites
+# -------------------------------------
 $(ildir):  | $(idir);  mkdir $@
 $(ilidir): | $(ildir); mkdir $@
 $(ilidir)/gmp: $(tdir)/gmp-$(gmp-version).tar.lz \
@@ -372,8 +388,16 @@ $(ibdir)/ld: $(tdir)/binutils-$(binutils-version).tar.lz \
 
 
 
-# Build GCC
-# ---------
+# (CURRENTLY IGNORED) Build GCC
+# -----------------------------
+#
+# The building is currently ignored because GNU Binutils currently doesn't
+# install critical components of building a compiler on Mac systems. So we
+# can install and use the GNU C compiler, but we're still going to have the
+# crazy issues with linking on a Mac OS. Since almost no natural science
+# paper's processing depends so strongly on the compiler used, for now,
+# we'll just use the host operating system's C library, compiler, and
+# linker.
 #
 # We want to build GCC after building all the basic tools that are often
 # used in a configure script to enable GCC's configure script to work as
-- 
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