add checking for zlib development libraries to configure script

[notmuch] / configure

diff --git a/configure b/configure
index e55f067e4bf696fe8c35228771eebf24804ec9a6..1010799dbe1fe385712933c826d7225494762f16 100755 (executable)
--- a/configure
+++ b/configure
@@ -1,5 +1,15 @@
 #! /bin/sh
 
+# defaults
+PREFIX=/usr/local
+
+# option parsing
+for option; do
+    if [ "${option%=*}" = '--prefix' ] ; then
+       PREFIX="${option#*=}"
+    fi
+done
+
 cat <<EOF
 Welcome to Notmuch, a system for indexing, searching and tagging your email.
 
@@ -53,6 +63,15 @@ else
     errors=$((errors + 1))
 fi
 
+if printf 'int main(){return 0;}' | gcc -x c -lz -o /dev/null - > /dev/null 2>&1; then
+    echo "Checking for zlib development files... Yes."
+    have_zlib=1
+else
+    echo "Checking for zlib development files... No."
+    have_zlib=0
+    errors=$((errors + 1))
+fi
+
 if pkg-config --modversion valgrind > /dev/null 2>&1; then
     echo "Checking for valgrind development files... Yes."
     have_valgrind=-DHAVE_VALGRIND
@@ -81,13 +100,16 @@ EOF
        echo "  The talloc library (including development files such as headers)"
        echo "  http://talloc.samba.org/"
     fi
+    if [ $have_zlib -eq 0 ]; then
+       echo "  The zlib library (including development files such as headers)"
+    fi
     cat <<EOF
 
 On a modern, package-based operating system such as Debian, you can
 install all of the dependencies with the following simple command
 line:
 
-       sudo apt-get install libxapian-dev libgmime-2.4-dev libtalloc-dev
+       sudo apt-get install libxapian-dev libgmime-2.4-dev libtalloc-dev libz-dev
 
 On other systems, a similar command can be used, but the details of the 
 package names may be different, (such as "devel" in place of "dev").
@@ -130,7 +152,7 @@ EOF
 
 # construct the Makefile.config
 cat > Makefile.config <<EOF
-prefix = /usr/local
+prefix = $PREFIX
 bash_completion_dir = /etc/bash_completion.d
 CFLAGS += ${have_valgrind}
 EOF