Removed unused oldincludedir, things are already complicated enough

[ghc-hetmet.git] / mk / config.mk.in

diff --git a/mk/config.mk.in b/mk/config.mk.in
index 7e00d18..ba0fcc8 100644 (file)
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -512,11 +512,32 @@ BIN_DIST_TARBALL=$(BIN_DIST_TOPDIR_REL)/$(BIN_DIST_NAME)-$(TARGETPLATFORM).tar.b
 
 BIN_DIST_INST_DIR = $(FPTOOLS_TOP_ABS)/bindisttest/installed
 
-
-#
-# Installation directories, we don't use half of these,
-# but since the configure script has them on offer while
-# passing through, we might as well set them.
+# Definition of installation directories, we don't use half of these, but since
+# the configure script has them on offer while passing through, we might as well
+# set them. Note that we have to be careful, because the GNU coding standards
+# have changed a bit over the course of time, and autoconf development reflects
+# this.
+#
+# A little bit of history regarding autoconf and GNU coding standards, use this
+# as a cheat-sheet for the stuff below:
+#
+# variable    | default < 2.60     | default >= 2.60
+# ------------+--------------------+--------------------------------------
+# exec_prefix | ${prefix}          | ${prefix}
+# libdir      | ${exec_prefix}/lib | ${exec_prefix}/lib
+# datarootdir | NONE!              | ${prefix}/share
+# datadir     | ${prefix}/share    | ${datarootdir}
+# infodir     | ${prefix}/info     | ${datarootdir}/info
+# mandir      | ${prefix}/man      | ${datarootdir}/man
+# docdir      | NONE!              | ${datarootdir}/doc/${PACKAGE_TARNAME}
+# htmldir     | NONE!              | ${docdir}
+# dvidir      | NONE!              | ${docdir}
+# pdfdir      | NONE!              | ${docdir}
+# psdir       | NONE!              | ${docdir}
+#
+# NOTE: The default e.g. ${docdir} above means that autoconf substitutes the
+# string "${docdir}", not the value of docdir! This is crucial for the GNU
+# coding standards.
 
 prefix          := @prefix@
 
@@ -532,7 +553,6 @@ bindir          := @bindir@
 datadir0        := @datadir@
 libdir0         := @libdir@
 includedir      := @includedir@
-oldincludedir   := @oldincludedir@
 mandir          := @mandir@
 
 ifeq "$(Windows)" "YES"
@@ -610,9 +630,6 @@ endif
 ifeq "$(strip $(includedir))" ""
 includedir     = $(prefix)/include
 endif
-ifeq "$(strip $(oldincludedir))" ""
-oldincludedir  = /usr/include
-endif
 ifeq "$(strip $(mandir))" ""
 mandir         = $(prefix)/man
 endif