[Mesa-dev] [PATCH 2/3] docs/releasing: polish LLVM_CONFIG wording/handling

[Emil Velikov]

From: Emil Velikov <emil.velikov at collabora.com>

Use concistent way to manage "non-default" llvm installations, clearly
documenting it.

AKA, use LLVM_CONFIG throughout and unset for the Windows/mingw builds.

Cc: Andres Gomez <agomez at igalia.com>
Signed-off-by: Emil Velikov <emil.velikov at collabora.com>
---
 docs/releasing.html | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/docs/releasing.html b/docs/releasing.html
index d74411532c8..15c7185949c 100644
--- a/docs/releasing.html
+++ b/docs/releasing.html
@@ -437,8 +437,11 @@ Here is one solution that I've been using.
 	chmod 755 -fR $__build_root; rm -rf $__build_root
 	mkdir -p $__build_root && cd $__build_root
 
-	# For the distcheck, you may want to specify which LLVM to use:
+	# For the native builds - such as distcheck, scons, sanity test, you
+	# may want to specify which LLVM to use:
 	# export LLVM_CONFIG=/usr/lib/llvm-3.9/bin/llvm-config
+
+	# Do a full distcheck
 	$__mesa_root/autogen.sh && make distcheck
 
 	# Build check the tarballs (scons, linux)
@@ -447,22 +450,22 @@ Here is one solution that I've been using.
 	cd .. && rm -rf mesa-$__version
 
 	# Build check the tarballs (scons, windows/mingw)
-	# You may need to unset LLVM if you set it before:
-	# unset LLVM_CONFIG
+	# Temporary drop LLVM_CONFIG, unless you have a Windows/mingw one.
+	# save_LLVM_CONFIG=`echo $LLVM_CONFIG`; unset LLVM_CONFIG
 	tar -xaf mesa-$__version.tar.xz && cd mesa-$__version
 	scons platform=windows toolchain=crossmingw
 	cd .. && rm -rf mesa-$__version
 
 	# Test the automake binaries
 	tar -xaf mesa-$__version.tar.xz && cd mesa-$__version
-	# You may want to specify which LLVM to use:
+	# Restore LLVM_CONFIG, if applicable:
+	# export LLVM_CONFIG=`echo $save_LLVM_CONFIG`
 	./configure \
 		--with-dri-drivers=i965,swrast \
 		--with-gallium-drivers=swrast \
 		--with-vulkan-drivers=intel \
 		--enable-llvm-shared-libs \
 		--enable-llvm \
-		--with-llvm-prefix=/usr/lib/llvm-3.9 \
 		--enable-glx-tls \
 		--enable-gbm \
 		--enable-egl \
-- 
2.14.1