On Tue, Mar 14, 2017 at 02:49:00PM -0400, Efraim Flashner wrote:
> efraim pushed a change to branch core-updates
> in repository guix.
> 
>       from  49c2a46   gnu: python@2.7: Update to 2.7.13
>        new  c5e9101   gnu: mesa: Use llvm backend for Intel hardware only.
>        new  2a8b89c   gnu: mesa: Customize build flags based on architecture.
>        new  044006f   gnu: mesa: Enable gallium tests.
>        new  568004c   gnu: nss: Build for aarch64-linux with 64-bit support.

Some in this push broke mesa for me on x86_64.

It fails in the configure phase like this:

checking if more special flags are required for pthreads... no
checking for PTHREAD_PRIO_INHERIT... yes
checking for PTHREADSTUBS... yes
checking for LIBDRM... yes
checking for SHA1Init... no
checking for CC_SHA1_Init... no
checking for wincrypt.h... no
checking for SHA1Init in -lmd... no
checking for LIBSHA1... no
checking for nettle_sha1_init in -lnettle... no
checking for gcry_md_open in -lgcrypt... no
checking for SHA1_Init in -lcrypto... no
checking for OPENSSL... no
checking for SHA1 implementation...
checking for GLPROTO... yes
checking for DRI2PROTO... yes
checking for DRI3PROTO... yes
checking for PRESENTPROTO... yes 
checking for XCB_DRI3... yes
checking for XF86VIDMODE... yes
checking for DRIGL... yes
checking for EXPAT... yes
configure: error: classic DRI driver '915' does not exist
phase `configure' failed after 12.6 seconds

Please tell me what other information or debugging I can provide.