reduce dependencies for coreutils-single

Don't depend on libcrypto from the multicall binary in
the coreutils-single package, because that trades space for speed.

Don't depend on libgmp from the multicall binary in
the coreutils-single package, because that only benefits
factor and expr.  The large size of gmp is not seen as
an appropriate tradeoff for this functionality.

Note also there is reduced startup overhead for all tools
with these removed due to not linking with the shared libs.

coreutils-find-requires.sh

@@ -0,0 +1,25 @@
+#!/bin/sh -
+# Reduce requires for coreutils-single
+# Needed since it has overlapping "binaries" with the main package
+# Ideally we could do the following in the spec only for the single subpackage
+# %define __requires_exclude_from ^(%{_bindir}|%{_sbindir})/([^c]|c[^o]|co[^r]|cor[^e])
+
+original_find_requires="$1"
+shift
+
+# Get the list of files.
+files=`sed "s/['\"]/\\\&/g"`
+
+single_bin='/usr/bin/coreutils'
+
+single=`echo $files | grep "$single_bin"`
+
+echo $files | tr [:blank:] '\n' |
+if [ "$single" ]; then
+    # Only allow the coreutils multicall binary
+    # Also adjust for .single renaming
+    sed -n 's|\(.*'"$single_bin"'\)\(.single\)\?$|\1.single|p'
+else
+    cat
+fi |
+$original_find_requires

coreutils.spec

@@ -1,7 +1,7 @@
 Summary: A set of basic GNU tools commonly used in shell scripts
 Name:    coreutils
 Version: 8.24
-Release: 103%{?dist}
+Release: 104%{?dist}
 License: GPLv3+
 Group:   System Environment/Base
 Url:     http://www.gnu.org/software/coreutils/
@@ -14,6 +14,12 @@ Source103:  coreutils-DIR_COLORS.256color
 Source105:  coreutils-colorls.sh
 Source106:  coreutils-colorls.csh
 
+# Provide our own custom requires for coreutils-single package
+Source10: coreutils-find-requires.sh
+%global _use_internal_dependency_generator 0
+%global __find_provides %{_rpmconfigdir}/find-provides
+%global __find_requires %{SOURCE10} %{_rpmconfigdir}/find-requires
+
 # From upstream
 
 # Our patches
@@ -110,7 +116,6 @@ Requires(preun): /sbin/install-info
 Requires(post): /sbin/install-info
 Requires(post): grep
 Requires:       ncurses
-Requires:       gmp
 
 Provides: fileutils = %{version}-%{release}
 Provides: sh-utils = %{version}-%{release}
@@ -201,13 +206,18 @@ autoconf --force
 automake --copy --add-missing
 for type in separate single; do
   mkdir $type && \
-  (cd $type && ln -s ../configure && \
-  test $type = 'single' && configure_single='--enable-single-binary'
-  %configure $configure_single \
+  (cd $type && ln -s ../configure || exit 1
+  if test $type = 'single'; then
+    config_single='--enable-single-binary'
+    config_single="$config_single --without-openssl"  # smaller/slower sha*sum
+    config_single="$config_single --without-gmp"      # expr/factor machine ints
+  else
+    config_single='--with-openssl'  # faster sha*sum
+  fi
+  %configure $config_single \
              --cache-file=../config.cache \
              --enable-install-program=arch \
              --enable-no-install-program=uptime \
-             --with-openssl \
              --with-tty-group \
              DEFAULT_POSIX2_VERSION=200112 alternative=199209 || :
   mkdir src # not needed with coreutils > 8.24
@@ -340,6 +350,9 @@ fi
 %license COPYING
 
 %changelog
+* Thu Dec 03 2015 Pádraig Brady <pbrady@redhat.com> - 8.24-104
+- Avoid libgmp and libcrypto dependencies from coreutils-single
+
 * Thu Dec 03 2015 Pádraig Brady <pbrady@redhat.com> - 8.24-103
 - Remove erroneous /usr/bin/kill from coreutils-single