From 954640880a58978040a7f2f02aae3bb52e43a773 Mon Sep 17 00:00:00 2001
From: AlysonStahl-NOAA <166434581+AlysonStahl-NOAA@users.noreply.github.com>
Date: Fri, 11 Oct 2024 10:53:37 -0700
Subject: [PATCH] only require fortran if needed for make_ftn_api=ON

---
 CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 07168a5..2c10345 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -7,7 +7,7 @@ cmake_minimum_required(VERSION 3.15)
 file(STRINGS "VERSION" pVersion)
 
 # Set up project with version number from VERSION file.
-project(wgrib2 VERSION ${pVersion} LANGUAGES Fortran C)
+project(wgrib2 VERSION ${pVersion} LANGUAGES C)
 
 # Handle user build options.
 option(ENABLE_DOCS "Enable generation of doxygen-based documentation." OFF)
@@ -39,6 +39,10 @@ option(BUILD_LIB "Build wgrib2 library?" on)
 option(BUILD_SHARED_LIB "Build shared library?" off)
 option(BUILD_WGRIB "Build wgrib code?" off)
 
+if (MAKE_FTN_API OR USE_IPOLATES)
+  enable_language(Fortran)
+endif()
+
 # Developers can use this option to specify a local directory which
 # holds the test files. They will be copied instead of fetching the
 # files via FTP.