support/dependencies/dependencies.sh: Remove some absolute paths

Buildroot fails to run on NixOS because it has no /bin/echo or
/bin/grep. Instead of relying on absolute paths, rely on tools to be
available in PATH. This should work for all systems.

Signed-off-by: Bjørn Forsman <bjorn.forsman@gmail.com>
Acked-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/support/dependencies/dependencies.sh b/support/dependencies/dependencies.sh
index 32b8feac5352fa7a5721613882cf03bbbb59cf54..d1ce91843e289202454e660d459b2711f25782d3 100755 (executable)
--- a/support/dependencies/dependencies.sh
+++ b/support/dependencies/dependencies.sh
@@ -7,20 +7,20 @@ export LC_ALL=C
 # Verify that grep works
 echo "WORKS" | grep "WORKS" >/dev/null 2>&1
 if test $? != 0 ; then
-       /bin/echo -e "\ngrep doesn't work\n"
+       echo -e "\ngrep doesn't work\n"
        exit 1
 fi
 
 # sanity check for CWD in LD_LIBRARY_PATH
 # try not to rely on egrep..
 if test -n "$LD_LIBRARY_PATH" ; then
-       /bin/echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | /bin/grep ':\.:' >/dev/null 2>&1 ||
-       /bin/echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | /bin/grep 'TRiGGER_start\.:' >/dev/null 2>&1 ||
-       /bin/echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | /bin/grep ':\.TRiGGER_end' >/dev/null 2>&1 ||
-       /bin/echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | /bin/grep 'TRiGGER_start\.TRiGGER_end' >/dev/null 2>&1
+       echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | grep ':\.:' >/dev/null 2>&1 ||
+       echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | grep 'TRiGGER_start\.:' >/dev/null 2>&1 ||
+       echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | grep ':\.TRiGGER_end' >/dev/null 2>&1 ||
+       echo TRiGGER_start"$LD_LIBRARY_PATH"TRiGGER_end | grep 'TRiGGER_start\.TRiGGER_end' >/dev/null 2>&1
        if test $? = 0; then
-               /bin/echo -e "\nYou seem to have the current working directory in your"
-               /bin/echo -e "LD_LIBRARY_PATH environment variable. This doesn't work.\n"
+               echo -e "\nYou seem to have the current working directory in your"
+               echo -e "LD_LIBRARY_PATH environment variable. This doesn't work.\n"
                exit 1;
        fi
 fi;
@@ -29,51 +29,51 @@ fi;
 # in the PATH makes the toolchain build process break.
 # try not to rely on egrep..
 if test -n "$PATH" ; then
-       /bin/echo TRiGGER_start"$PATH"TRiGGER_end | /bin/grep ':\.:' >/dev/null 2>&1 ||
-       /bin/echo TRiGGER_start"$PATH"TRiGGER_end | /bin/grep 'TRiGGER_start\.:' >/dev/null 2>&1 ||
-       /bin/echo TRiGGER_start"$PATH"TRiGGER_end | /bin/grep ':\.TRiGGER_end' >/dev/null 2>&1 ||
-       /bin/echo TRiGGER_start"$PATH"TRiGGER_end | /bin/grep 'TRiGGER_start\.TRiGGER_end' >/dev/null 2>&1
+       echo TRiGGER_start"$PATH"TRiGGER_end | grep ':\.:' >/dev/null 2>&1 ||
+       echo TRiGGER_start"$PATH"TRiGGER_end | grep 'TRiGGER_start\.:' >/dev/null 2>&1 ||
+       echo TRiGGER_start"$PATH"TRiGGER_end | grep ':\.TRiGGER_end' >/dev/null 2>&1 ||
+       echo TRiGGER_start"$PATH"TRiGGER_end | grep 'TRiGGER_start\.TRiGGER_end' >/dev/null 2>&1
        if test $? = 0; then
-               /bin/echo -e "\nYou seem to have the current working directory in your"
-               /bin/echo -e "PATH environment variable. This doesn't work.\n"
+               echo -e "\nYou seem to have the current working directory in your"
+               echo -e "PATH environment variable. This doesn't work.\n"
                exit 1;
        fi
 fi;
 
 if test -n "$PERL_MM_OPT" ; then
-    /bin/echo -e "\nYou have PERL_MM_OPT defined because Perl local::lib"
-    /bin/echo -e "is installed on your system. Please unset this variable"
-    /bin/echo -e "before starting Buildroot, otherwise the compilation of"
-    /bin/echo -e "Perl related packages will fail"
+    echo -e "\nYou have PERL_MM_OPT defined because Perl local::lib"
+    echo -e "is installed on your system. Please unset this variable"
+    echo -e "before starting Buildroot, otherwise the compilation of"
+    echo -e "Perl related packages will fail"
     exit 1
 fi
 
 # Verify that which is installed
 if ! which which > /dev/null ; then
-       /bin/echo -e "\nYou must install 'which' on your build machine\n";
+       echo -e "\nYou must install 'which' on your build machine\n";
        exit 1;
 fi;
 
 if ! which sed > /dev/null ; then
-       /bin/echo -e "\nYou must install 'sed' on your build machine\n"
+       echo -e "\nYou must install 'sed' on your build machine\n"
        exit 1
 fi
 
 # Check make
 MAKE=$(which make 2> /dev/null)
 if [ -z "$MAKE" ] ; then
-       /bin/echo -e "\nYou must install 'make' on your build machine\n";
+       echo -e "\nYou must install 'make' on your build machine\n";
        exit 1;
 fi;
 MAKE_VERSION=$($MAKE --version 2>&1 | sed -e 's/^.* \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q')
 if [ -z "$MAKE_VERSION" ] ; then
-       /bin/echo -e "\nYou must install 'make' on your build machine\n";
+       echo -e "\nYou must install 'make' on your build machine\n";
        exit 1;
 fi;
 MAKE_MAJOR=$(echo $MAKE_VERSION | sed -e "s/\..*//g")
 MAKE_MINOR=$(echo $MAKE_VERSION | sed -e "s/^$MAKE_MAJOR\.//g" -e "s/\..*//g" -e "s/[a-zA-Z].*//g")
 if [ $MAKE_MAJOR -lt 3 ] || [ $MAKE_MAJOR -eq 3 -a $MAKE_MINOR -lt 81 ] ; then
-       /bin/echo -e "\nYou have make '$MAKE_VERSION' installed.  GNU make >=3.81 is required\n"
+       echo -e "\nYou have make '$MAKE_VERSION' installed.  GNU make >=3.81 is required\n"
        exit 1;
 fi;
 
@@ -83,14 +83,14 @@ if [ -z "$COMPILER" ] ; then
        COMPILER=$(which cc 2> /dev/null)
 fi;
 if [ -z "$COMPILER" ] ; then
-       /bin/echo -e "\nYou must install 'gcc' on your build machine\n";
+       echo -e "\nYou must install 'gcc' on your build machine\n";
        exit 1;
 fi;
 
 COMPILER_VERSION=$($COMPILER -v 2>&1 | sed -n '/^gcc version/p' |
        sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q')
 if [ -z "$COMPILER_VERSION" ] ; then
-       /bin/echo -e "\nYou must install 'gcc' on your build machine\n";
+       echo -e "\nYou must install 'gcc' on your build machine\n";
        exit 1;
 fi;
 COMPILER_MAJOR=$(echo $COMPILER_VERSION | sed -e "s/\..*//g")
@@ -106,27 +106,27 @@ if [ -z "$CXXCOMPILER" ] ; then
        CXXCOMPILER=$(which c++ 2> /dev/null)
 fi
 if [ -z "$CXXCOMPILER" ] ; then
-       /bin/echo -e "\nYou may have to install 'g++' on your build machine\n"
+       echo -e "\nYou may have to install 'g++' on your build machine\n"
        #exit 1
 fi
 if [ ! -z "$CXXCOMPILER" ] ; then
        CXXCOMPILER_VERSION=$($CXXCOMPILER -v 2>&1 | sed -n '/^gcc version/p' |
                sed -e 's/^gcc version \([0-9\.]\)/\1/g' -e 's/[-\ ].*//g' -e '1q')
        if [ -z "$CXXCOMPILER_VERSION" ] ; then
-               /bin/echo -e "\nYou may have to install 'g++' on your build machine\n"
+               echo -e "\nYou may have to install 'g++' on your build machine\n"
        fi
 
        CXXCOMPILER_MAJOR=$(echo $CXXCOMPILER_VERSION | sed -e "s/\..*//g")
        CXXCOMPILER_MINOR=$(echo $CXXCOMPILER_VERSION | sed -e "s/^$CXXCOMPILER_MAJOR\.//g" -e "s/\..*//g")
        if [ $CXXCOMPILER_MAJOR -lt 3 -o $CXXCOMPILER_MAJOR -eq 2 -a $CXXCOMPILER_MINOR -lt 95 ] ; then
-               /bin/echo -e "\nYou have g++ '$CXXCOMPILER_VERSION' installed.  g++ >= 2.95 is required\n"
+               echo -e "\nYou have g++ '$CXXCOMPILER_VERSION' installed.  g++ >= 2.95 is required\n"
                exit 1
        fi
 fi
 
 # Check bash
 if ! $SHELL --version 2>&1 | grep -q '^GNU bash'; then
-       /bin/echo -e "\nYou must install 'bash' on your build machine\n";
+       echo -e "\nYou must install 'bash' on your build machine\n";
        exit 1;
 fi;
 
@@ -134,16 +134,16 @@ fi;
 missing_progs="no"
 for prog in patch perl tar wget cpio python unzip rsync bc ${DL_TOOLS} ; do
     if ! which $prog > /dev/null ; then
-       /bin/echo -e "You must install '$prog' on your build machine";
+       echo -e "You must install '$prog' on your build machine";
        missing_progs="yes"
        if test $prog = "svn" ; then
-           /bin/echo -e "  svn is usually part of the subversion package in your distribution"
+           echo -e "  svn is usually part of the subversion package in your distribution"
        elif test $prog = "hg" ; then
-            /bin/echo -e "  hg is usually part of the mercurial package in your distribution"
+            echo -e "  hg is usually part of the mercurial package in your distribution"
        elif test $prog = "zcat" ; then
-            /bin/echo -e "  zcat is usually part of the gzip package in your distribution"
+            echo -e "  zcat is usually part of the gzip package in your distribution"
        elif test $prog = "bzcat" ; then
-            /bin/echo -e "  bzcat is usually part of the bzip2 package in your distribution"
+            echo -e "  bzcat is usually part of the bzip2 package in your distribution"
        fi
     fi
 done
@@ -155,11 +155,11 @@ fi
 if grep ^BR2_TOOLCHAIN_BUILDROOT=y $BUILDROOT_CONFIG > /dev/null && \
    grep ^BR2_ENABLE_LOCALE=y       $BUILDROOT_CONFIG > /dev/null ; then
    if ! which locale > /dev/null ; then
-       /bin/echo -e "\nYou need locale support on your build machine to build a toolchain supporting locales\n"
+       echo -e "\nYou need locale support on your build machine to build a toolchain supporting locales\n"
        exit 1 ;
    fi
    if ! locale -a | grep -q -i utf8$ ; then
-       /bin/echo -e "\nYou need at least one UTF8 locale to build a toolchain supporting locales\n"
+       echo -e "\nYou need at least one UTF8 locale to build a toolchain supporting locales\n"
        exit 1 ;
    fi
 fi
@@ -167,7 +167,7 @@ fi
 if grep -q ^BR2_PACKAGE_CLASSPATH=y $BUILDROOT_CONFIG ; then
     for prog in javac jar; do
        if ! which $prog > /dev/null ; then
-           /bin/echo -e "\nYou must install '$prog' on your build machine\n" >&2
+           echo -e "\nYou must install '$prog' on your build machine\n" >&2
            exit 1
        fi
     done
@@ -175,22 +175,22 @@ fi
 
 if grep -q ^BR2_HOSTARCH_NEEDS_IA32_LIBS=y $BUILDROOT_CONFIG ; then
     if test ! -f /lib/ld-linux.so.2 ; then
-       /bin/echo -e "\nYour Buildroot configuration uses pre-built tools for the x86 architecture,"
-       /bin/echo -e "but your build machine uses the x86-64 architecture without the 32 bits compatibility"
-       /bin/echo -e "library."
-       /bin/echo -e "If you're running a Debian/Ubuntu distribution, install the libc6:i386,"
-       /bin/echo -e "libstdc++6:i386, and zlib1g:i386 packages."
-       /bin/echo -e "For other distributions, refer to the documentation on how to install the 32 bits"
-       /bin/echo -e "compatibility libraries."
+       echo -e "\nYour Buildroot configuration uses pre-built tools for the x86 architecture,"
+       echo -e "but your build machine uses the x86-64 architecture without the 32 bits compatibility"
+       echo -e "library."
+       echo -e "If you're running a Debian/Ubuntu distribution, install the libc6:i386,"
+       echo -e "libstdc++6:i386, and zlib1g:i386 packages."
+       echo -e "For other distributions, refer to the documentation on how to install the 32 bits"
+       echo -e "compatibility libraries."
        exit 1
     fi
 fi
 
 if grep -q ^BR2_HOSTARCH_NEEDS_IA32_COMPILER=y $BUILDROOT_CONFIG ; then
     if ! echo "int main(void) {}" | gcc -m32 -x c - ; then
-       /bin/echo -e "\nYour Buildroot configuration needs a compiler capable of building 32 bits binaries."
-       /bin/echo -e "If you're running a Debian/Ubuntu distribution, install the gcc-multilib package."
-       /bin/echo -e "For other distributions, refer to their documentation."
+       echo -e "\nYour Buildroot configuration needs a compiler capable of building 32 bits binaries."
+       echo -e "If you're running a Debian/Ubuntu distribution, install the gcc-multilib package."
+       echo -e "For other distributions, refer to their documentation."
        exit 1
     fi
 fi
@@ -198,7 +198,7 @@ fi
 # Check that the Perl installation is complete enough to build
 # host-autoconf.
 if ! perl  -e "require Data::Dumper" > /dev/null 2>&1 ; then
-    /bin/echo -e "Your Perl installation is not complete enough, at least Data::Dumper is missing."
-    /bin/echo -e "On Debian/Ubuntu distributions, install the 'perl' package."
+    echo -e "Your Perl installation is not complete enough, at least Data::Dumper is missing."
+    echo -e "On Debian/Ubuntu distributions, install the 'perl' package."
     exit 1
 fi