From ba14e905f3c473c776a1e4185adfb5bc9edb7bc8 Mon Sep 17 00:00:00 2001
From: Lephenixnoir <sebastien.michelland@protonmail.com>
Date: Thu, 14 Jan 2021 19:14:12 +0100
Subject: [PATCH] add an `any` configuration that uses existing GCC installs

---
 .gitignore              | 1 +
 README.md               | 6 ++++++
 configure.sh            | 9 +++++++++
 giteapc-config-any.make | 4 ++++
 giteapc.make            | 4 +---
 5 files changed, 21 insertions(+), 3 deletions(-)
 create mode 100644 giteapc-config-any.make

diff --git a/.gitignore b/.gitignore
index 23f45e2..792f670 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,6 +1,7 @@
 # Everything but the scripts
 *
 !giteapc.make
+!giteapc-config-any.make
 !configure.sh
 !build.sh
 !install.sh
diff --git a/README.md b/README.md
index b71d0bc..a370c25 100644
--- a/README.md
+++ b/README.md
@@ -11,3 +11,9 @@ You can also install manually. First install [`sh-elf-binutils`](https://gitea.p
 ```
 % make -f giteapc.make configure build install PREFIX=$HOME/.local
 ```
+
+An `any` configuration is provided in case GCC is already installed externally, to have this package installed without rebuilding it.
+
+```
+% giteapc install Lephenixnoir/sh-elf-gcc:any
+```
diff --git a/configure.sh b/configure.sh
index 1aeaceb..2469dd8 100755
--- a/configure.sh
+++ b/configure.sh
@@ -19,6 +19,15 @@ if [[ -f "$existing_gcc" ]]; then
   fi
 fi
 
+# Aggressive parameter to avoid rebuilds
+
+if [[ ! -z "$ACCEPT_ANY" ]]; then
+  if command -v sh-elf-gcc >/dev/null 2>&1; then
+    echo "$TAG sh-elf-gcc in PATH and ACCEPT_ANY is set, skipping build"
+    exit 0
+  fi
+fi
+
 # Download archive
 
 if [[ -f "$ARCHIVE" ]]; then
diff --git a/giteapc-config-any.make b/giteapc-config-any.make
new file mode 100644
index 0000000..5b11e6f
--- /dev/null
+++ b/giteapc-config-any.make
@@ -0,0 +1,4 @@
+# Accept any version installed anywhere; try as hard as possible to not build
+ACCEPT_ANY=1
+
+export ACCEPT_ANY
diff --git a/giteapc.make b/giteapc.make
index d293f94..b52caff 100644
--- a/giteapc.make
+++ b/giteapc.make
@@ -4,9 +4,7 @@
 PREFIX ?= $(GITEAPC_PREFIX)
 VERSION = 10.2.0
 
-ifneq ($(GITEAPC_CONFIG),)
-include giteapc-config-$(GITEAPC_CONFIG).make
-endif
+-include giteapc-config.make
 
 configure:
 	@ ./configure.sh $(VERSION) "$(PREFIX)"