1 files changed, 8 insertions, 1 deletions
diff --git a/hstcal/build.sh b/hstcal/build.sh
index a9727f0..743a75f 100644
--- a/hstcal/build.sh
+++ b/hstcal/build.sh
@@ -1,5 +1,12 @@
+# Use the compilers provided by conda. The activation of the build
+# environment defines the GCC and GFORTRAN env vars.
+export CC=$CC
+
+export FCFLAGS="$FCFLAGS -fPIC"
+
 if [[ `uname` == Darwin ]]; then
-    export CC=`which gcc`
+    export CC=$(which $CLANG)
+    export GFORTRAN=$(which gfortran)
     if [[ `uname -m` == x86_64 ]]; then
         export CFLAGS="$CFLAGS -m64"
         export LDFLAGS="$LDFLAGS -m64"