From cb4846a58d5a7f718fdc05e00d1cd22f15427a77 Mon Sep 17 00:00:00 2001
From: rowanG077 <goemansrowan@gmail.com>
Date: Wed, 7 Jun 2023 17:11:39 +0200
Subject: [PATCH] build: push INSTALL_PREFIX from env to cmake var

---
 ecp5/CMakeLists.txt  | 8 +++++++-
 ice40/CMakeLists.txt | 2 ++
 nexus/CMakeLists.txt | 7 ++++++-
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/ecp5/CMakeLists.txt b/ecp5/CMakeLists.txt
index 115e0ce8..758b7f90 100644
--- a/ecp5/CMakeLists.txt
+++ b/ecp5/CMakeLists.txt
@@ -21,7 +21,13 @@ else()
         message(STATUS "Trellis program prefix: ${TRELLIS_PROGRAM_PREFIX}")
     endif()
 
-    set(TRELLIS_INSTALL_PREFIX ${CMAKE_INSTALL_PREFIX} CACHE STRING
+    IF(DEFINED ENV{TRELLIS_INSTALL_PREFIX})
+        set(trellis_default_install_prefix $ENV{TRELLIS_INSTALL_PREFIX})
+    ELSE()
+        set(trellis_default_install_prefix ${CMAKE_INSTALL_PREFIX})
+    ENDIF()
+
+    set(TRELLIS_INSTALL_PREFIX ${trellis_default_install_prefix} CACHE STRING
         "Trellis install prefix")
     message(STATUS "Trellis install prefix: ${TRELLIS_INSTALL_PREFIX}")
 
diff --git a/ice40/CMakeLists.txt b/ice40/CMakeLists.txt
index 3bdfa26d..7d18097c 100644
--- a/ice40/CMakeLists.txt
+++ b/ice40/CMakeLists.txt
@@ -22,6 +22,8 @@ else()
         get_filename_component(dir ${ICEBOX_ROOT} DIRECTORY)
         get_filename_component(dir ${dir} DIRECTORY)
         set(icestorm_default_install_prefix ${dir})
+    elseif(DEFINED ENV{ICESTORM_INSTALL_PREFIX})
+        set(icestorm_default_install_prefix $ENV{ICESTORM_INSTALL_PREFIX})
     endif()
     set(ICESTORM_INSTALL_PREFIX ${icestorm_default_install_prefix} CACHE STRING
         "IceStorm install prefix")
diff --git a/nexus/CMakeLists.txt b/nexus/CMakeLists.txt
index d58bd689..22e785f7 100644
--- a/nexus/CMakeLists.txt
+++ b/nexus/CMakeLists.txt
@@ -13,7 +13,12 @@ if(DEFINED NEXUS_CHIPDB)
     add_custom_target(chipdb-nexus-bbas ALL)
 else()
     # shared among all families
-    set(OXIDE_INSTALL_PREFIX "${CMAKE_INSTALL_PREFIX}" CACHE STRING
+    IF(DEFINED ENV{OXIDE_INSTALL_PREFIX})
+        set(oxide_default_install_prefix $ENV{OXIDE_INSTALL_PREFIX})
+    ELSE()
+        set(oxide_default_install_prefix ${CMAKE_INSTALL_PREFIX})
+    ENDIF()
+    set(OXIDE_INSTALL_PREFIX "${oxide_default_install_prefix}" CACHE STRING
         "prjoxide install prefix")
     message(STATUS "prjoxide install prefix: ${OXIDE_INSTALL_PREFIX}")