From 008f1b887e7aede462932eff14c821b567b13135 Mon Sep 17 00:00:00 2001
From: "H. Vetinari" <h.vetinari@gmx.com>
Date: Sat, 3 Aug 2024 21:45:46 +1100
Subject: [PATCH 1/2] lighten run-dependencies of flang; no need for all of
 clangdev

---
 recipe/meta.yaml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index d48a957..ce2582d 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -106,7 +106,8 @@ outputs:
         - {{ pin_subpackage('libfortran-main', exact=True) }}
       run:
         - sysroot_{{ target_platform }} >={{ c_stdlib_version }}    # [linux]
-        - clangdev =={{ version }}
+        - clang =={{ version }}
+        - compiler-rt =={{ version }}
         - {{ pin_subpackage('libflang', exact=True) }}
         - {{ pin_subpackage('libfortran-main', exact=True) }}
     test:

From 79d0531d72987c7cfbad03073d201f8dc0e027a9 Mon Sep 17 00:00:00 2001
From: "H. Vetinari" <h.vetinari@gmx.com>
Date: Sat, 3 Aug 2024 21:47:31 +1100
Subject: [PATCH 2/2] fix activation; doesn't work with enabledelayedexpansion

---
 recipe/activate.bat      | 11 ++---------
 recipe/activate.sh       |  2 ++
 recipe/deactivate.sh     |  1 +
 recipe/install_flang.bat |  7 +++++++
 recipe/meta.yaml         |  8 +++++++-
 5 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/recipe/activate.bat b/recipe/activate.bat
index 248f835..74559f1 100644
--- a/recipe/activate.bat
+++ b/recipe/activate.bat
@@ -1,5 +1,3 @@
-setlocal enabledelayedexpansion
-
 set "_OLD_FC=%FC%"
 set "_OLD_FFLAGS=%FFLAGS%"
 set "_OLD_LD=%LD%"
@@ -9,11 +7,6 @@ set "_OLD_LDFLAGS=%LDFLAGS%"
 set "FC=flang-new"
 set "LD=lld-link.exe"
 
-:: need to read clang version for path to compiler-rt
-FOR /F "tokens=* USEBACKQ" %%F IN (`clang.exe -dumpversion`) DO (
-    SET "_CLANG_VER=%%F"
-)
-
 :: following https://github.com/conda-forge/clang-win-activation-feedstock/blob/main/recipe/activate-clang_win-64.bat
-set "FFLAGS=-D_CRT_SECURE_NO_WARNINGS -nostdlib -fms-runtime-lib=dll -fuse-ld=lld -fno-aligned-allocation"
-set "LDFLAGS=-nostdlib -Wl,-defaultlib:%CONDA_PREFIX:\=/%/lib/clang/!CLANG_VER:~0,2!/lib/windows/clang_rt.builtins-x86_64.lib"
+set "FFLAGS=-D_CRT_SECURE_NO_WARNINGS -nostdlib -fms-runtime-lib=dll -fuse-ld=lld -fno-aligned-allocation -I%LIBRARY_INC%"
+set "LDFLAGS=-nostdlib -Wl,-defaultlib:%CONDA_PREFIX:\=/%/lib/clang/@MAJOR_VER@/lib/windows/clang_rt.builtins-x86_64.lib"
diff --git a/recipe/activate.sh b/recipe/activate.sh
index 33f448c..6a37caf 100644
--- a/recipe/activate.sh
+++ b/recipe/activate.sh
@@ -1,3 +1,4 @@
+export _OLD_FC=$FC
 export _OLD_CPATH=$CPATH
 export _OLD_FFLAGS=$FFLAGS
 export _OLD_LIBRARY_PATH=$LIBRARY_PATH
@@ -14,4 +15,5 @@ else
     export FORTRANFLAGS="$FORTRANFLAGS --sysroot=$CONDA_BUILD_SYSROOT"
 fi
 
+export FC="flang-new"
 export FFLAGS=$FORTRANFLAGS
diff --git a/recipe/deactivate.sh b/recipe/deactivate.sh
index 71319f2..754aa68 100644
--- a/recipe/deactivate.sh
+++ b/recipe/deactivate.sh
@@ -1,3 +1,4 @@
+export FC=$_OLD_FC
 export CPATH=$_OLD_CPATH
 export FFLAGS=$_OLD_FFLAGS
 export FORTRANFLAGS=$_OLD_FORTRANFLAGS
diff --git a/recipe/install_flang.bat b/recipe/install_flang.bat
index 9e023d5..ed29a99 100644
--- a/recipe/install_flang.bat
+++ b/recipe/install_flang.bat
@@ -1,12 +1,19 @@
+@echo on
+
 cd %SRC_DIR%\build
 call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64
 
 cmake --build . --target install
 if %ERRORLEVEL% neq 0 exit 1
 
+for /f "tokens=1 delims=." %%i in ("%PKG_VERSION%") do (
+  set "MAJOR_VER=%%i"
+)
+
 :: Copy the [de]activate scripts to %PREFIX%\etc\conda\[de]activate.d.
 :: This will allow them to be run on environment activation.
 FOR %%F IN (activate deactivate) DO (
     IF NOT EXIST %PREFIX%\etc\conda\%%F.d MKDIR %PREFIX%\etc\conda\%%F.d
     COPY %RECIPE_DIR%\%%F.bat %PREFIX%\etc\conda\%%F.d\%PKG_NAME%_%%F.bat
+    sed -i 's/@MAJOR_VER@/%MAJOR_VER%/g' %PREFIX%\etc\conda\%%F.d\%PKG_NAME%_%%F.bat
 )
diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index ce2582d..6c676e1 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -9,7 +9,7 @@ source:
   sha256: 09c08693a9afd6236f27a2ebae62cda656eba19021ef3f94d59e931d662d4856
 
 build:
-  number: 2
+  number: 3
   # intentionally only windows (main target) & linux (debuggability)
   skip: true  # [osx]
 
@@ -87,6 +87,8 @@ outputs:
       build:
         - cmake
         - ninja
+        - sed     # [unix]
+        - m2-sed  # [win]
         # for strong run-exports
         - {{ compiler('c') }}
         - {{ stdlib('c') }}
@@ -114,6 +116,8 @@ outputs:
       requires:
         - {{ compiler('c') }}       # [win]
         - {{ compiler('cxx') }}     # [win]
+        - grep                      # [unix]
+        - m2-grep                   # [win]
       files:
         - hello_world.f90
       commands:
@@ -122,6 +126,8 @@ outputs:
         - flang-new hello_world.f90
         - ./a.out   # [unix]
         - a.exe     # [win]
+        # check if activation worked
+        - env | grep "FC="
 
   - name: flang_{{ target_platform }}
     run_exports: