Install OpenSSL's pkgconfig files (#5271)

This should avoid interference from the system OpenSSL, since most distros
install pkgconfig files for OpenSSL and CMake may find those if we don't put
ours in the appropriate path.

openssl.sh

@@ -21,15 +21,17 @@ build_requires:
   - zlib
   - alibuild-recipe-tools
   - "GCC-Toolchain:(?!osx)"
+prepend_path:
+  PKG_CONFIG_PATH: "$OPENSSL_ROOT/lib/pkgconfig"
 ---
 #!/bin/bash -e
 
-rsync -av --delete --exclude="**/.git" $SOURCEDIR/ .
+rsync -av --delete --exclude="**/.git" "$SOURCEDIR/" .
 case ${PKG_VERSION} in
-  v1.1*) 
+  v1.1*)
     OPTS=""
     OPENSSLDIRPREFIX="" ;;
-  *) 
+  *)
     OPTS="no-krb5"
     OPENSSLDIRPREFIX="etc/ssl"
   ;;
@@ -53,8 +55,7 @@ make  # don't ever try to build in multicore
 make install_sw # no not install man pages
 
 # Remove static libraries and pkgconfig
-rm -rf $INSTALLROOT/lib/pkgconfig \
-       $INSTALLROOT/lib/*.a
+rm -rf "$INSTALLROOT"/lib/*.a
 
 # Modulefile
 MODULEDIR="$INSTALLROOT/etc/modulefiles"
@@ -65,4 +66,5 @@ alibuild-generate-module --lib --bin > "$MODULEFILE"
 cat << EOF >> "$MODULEFILE"
 prepend-path ROOT_INCLUDE_PATH \$PKG_ROOT/include
 EOF
-mkdir -p $INSTALLROOT/etc/modulefiles && rsync -a --delete  "$MODULEDIR"/ $INSTALLROOT/etc/modulefiles
+mkdir -p "$INSTALLROOT/etc/modulefiles"
+rsync -a --delete  "$MODULEDIR/" "$INSTALLROOT/etc/modulefiles"