Fix build on OSX

Needs gnu tools from homebrew

Author: facchinm

build.conf

@@ -18,14 +18,22 @@ MPC_SOURCES="http://www.multiprecision.org/mpc/download"
 # With any luck, you don't need to edit the below
 ################################################################################
 
-# Defaut the versions of gmp/mpfr/mpc to those specified in the SOURCES.README
+if [[ "$OSTYPE" == "darwin"* ]]; then
+SED=gsed
+else
+SED=sed
+fi
+
+GREP=grep
+
+#fallback for grep without pearl regexp
 SOURCES_README="$(wget -O - http://distribute.atmel.no/tools/opensource/Atmel-AVR-GNU-Toolchain/${AVR_VERSION}/SOURCES.README 2>/dev/null)"
-[ -z "$GCC_VERSION"       ] && GCC_VERSION="$(echo "$SOURCES_README" | grep -Po "GCC\s+([0-9]+\.)+[0-9]+" | sed -r 's/GCC\s//')"
-[ -z "$AUTOMAKE_VERSION"  ] && AUTOMAKE_VERSION="$(echo "$SOURCES_README" | grep -Po "automake-([0-9]+\.)+[0-9]+" | sed -r 's/[^-]+-//')"
-[ -z "$AUTOCONF_VERSION"  ] && AUTOCONF_VERSION="$(echo "$SOURCES_README" | grep -Po "autoconf-([0-9]+\.)+[0-9]+" | sed -r 's/[^-]+-//')"
-[ -z "$GMP_VERSION"  ] && GMP_VERSION="$(echo "$SOURCES_README" | grep -Po "gmp-([0-9]+\.)+[0-9]+" | sed -r 's/[^-]+-//')"
-[ -z "$MPFR_VERSION" ] && MPFR_VERSION="$(echo "$SOURCES_README" | grep -Po "mpfr-([0-9]+\.)+[0-9]+" | sed -r 's/[^-]+-//')"
-[ -z "$MPC_VERSION"  ] && MPC_VERSION="$(echo "$SOURCES_README" | grep -Po "mpc-([0-9]+\.)+[0-9]+" | sed -r 's/[^-]+-//')"
+[ -z "$GCC_VERSION"       ] && GCC_VERSION="$(echo "$SOURCES_README" | $GREP "GCC"  | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")"
+[ -z "$AUTOMAKE_VERSION"  ] && AUTOMAKE_VERSION="$(echo "$SOURCES_README" | $GREP "automake"  | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")"
+[ -z "$AUTOCONF_VERSION"  ] && AUTOCONF_VERSION="$(echo "$SOURCES_README" | $GREP "autoconf"  | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")"
+[ -z "$GMP_VERSION"  ] && GMP_VERSION="$(echo "$SOURCES_README" | $GREP "gmp"  | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")"
+[ -z "$MPFR_VERSION" ] && MPFR_VERSION="$(echo "$SOURCES_README" | $GREP "mpfr" | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")"
+[ -z "$MPC_VERSION"  ] && MPC_VERSION="$(echo "$SOURCES_README" | $GREP "mpc" | egrep -o "([0-9]{1,}\.)+[0-9]{1,}")"
 
 # Build the URLs from which to grab the archives for those components
 AUTOCONF_SOURCE="${GNU_SOURCES}/autoconf/autoconf-${AUTOCONF_VERSION}.tar.bz2"

tools.bash

@@ -66,7 +66,7 @@ CONFARGS="--prefix=$TOOLS_PATH"
 
 # Prevent compilation problem with docs complaining about @itemx not following @item
 cp doc/automake.texi doc/automake.texi2
-cat doc/automake.texi2 | sed -r 's/@itemx/@c @itemx/' >doc/automake.texi
+cat doc/automake.texi2 | $SED -r 's/@itemx/@c @itemx/' >doc/automake.texi
 rm doc/automake.texi2
 
 nice -n 10 make -j $MAKE_JOBS