add command check and freebsd support (not really)

1 files changed, 38 insertions, 19 deletions

diff --git a/b b/b
index 235cc28..e81c6b6 100755
--- a/b
+++ b/b
@@ -8,27 +8,40 @@ echorun()
 
 compile()
 {
-	echorun "$cc $cflags $include $lflags -o $dir/$1.o $dir/$1.c $libs"
+	echorun "$cc $cflags $include $lflags -o $1.o $1.c $libs"
 }
 
-cur=`pwd`
+check_commands()
+{
+	for cmd in $@ ; do
+		if [ ! `which $cmd` ] ; then
+			echo "command $cmd didn't exist"
+			exit
+		fi
+	done
+}
+
+cc='gcc'
+
+os=`uname`
+if [ "$os" = "FreeBSD" ] ; then
+	cc="clang"
+fi
+
+check_commands pwd realpath dirname $cc
+
+start=`pwd`
 dir=`realpath $0`
 dir=`dirname $dir`
 
 echorun "cd $dir"
 
 if [ "$1" = 'clean' ] ; then
-	echorun "rm -f *.o"
-	echorun "cd $cur"
-	exit
-fi
-if [ "$1" = 'cleanlib' ] ; then
 	echorun "rm -f *.o libprb.a"
-	echorun "cd $cur"
+	echorun "cd $start"
 	exit
 fi
 
-cc='gcc'
 debug='-g'
 release='-O2'
 cflags="-c"
@@ -38,15 +51,21 @@ else
 	cflags="$release $cflags"
 fi
 
-compile prbm
-compile arena
-compile prbs
-compile linux
+srcs='
+prbm
+arena
+prbs
+linux
+'
+
+for src in $srcs ; do
+	compile $src
+done
 
-echorun "ar rcs $dir/libprb.a \
-	$dir/prbm.o \
-	$dir/arena.o \
-	$dir/prbs.o \
-	$dir/linux.o"
+echorun "ar rcs libprb.a \
+	prbm \
+	arena \
+	prbs \
+	linux"
 
-echorun "cd $cur"
+echorun "cd $start"