[pkgsrc/trunk]: pkgsrc/mk mk/haskell.mk: Ignore per-user package environment ...

[pho <pho%pkgsrc.org@localhost>]

details:   https://anonhg.NetBSD.org/pkgsrc/rev/018e37fda1fc
branches:  trunk
changeset: 448752:018e37fda1fc
user:      pho <pho%pkgsrc.org@localhost>
date:      Sun Mar 14 08:19:24 2021 +0000

description:
mk/haskell.mk: Ignore per-user package environment file while building 'Setup'

Turned out this was necessary when using `cabal-install v2-install` outside of pkgsrc, because the command creates a per-user package environment and in turn makes Cabal hidden.

diffstat:

 mk/haskell.mk |  12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diffs (33 lines):

diff -r 86fc449d8f1d -r 018e37fda1fc mk/haskell.mk
--- a/mk/haskell.mk     Sun Mar 14 08:17:26 2021 +0000
+++ b/mk/haskell.mk     Sun Mar 14 08:19:24 2021 +0000
@@ -1,4 +1,4 @@
-# $NetBSD: haskell.mk,v 1.27 2020/07/01 15:07:25 rillig Exp $
+# $NetBSD: haskell.mk,v 1.28 2021/03/14 08:19:24 pho Exp $
 #
 # This Makefile fragment handles Haskell Cabal packages.
 # Package configuration, building, installation, registration and
@@ -113,6 +113,12 @@
 _HASKELL_VERSION_CMD=  ${_HASKELL_BIN} -V 2>/dev/null | ${CUT} -d ' ' -f 8
 _HASKELL_VERSION=      ghc-${_HASKELL_VERSION_CMD:sh}
 
+# By default GHC uses a per-user default environment file if one is
+# available. Cabal has to be visible in order to compile Setup.?hs,
+# but per-user default environment files usually don't mark it as
+# visible. Tell GHC not to read any environment files.
+_HASKELL_BUILD_SETUP_OPTS=     -package-env -
+
 # GHC requires C compiler.
 USE_LANGUAGES+=        c
 
@@ -207,8 +213,8 @@
 # that didn't work.
 do-configure:
        ${RUN} ${_ULIMIT_CMD} cd ${WRKSRC} && \
-               ( ${_HASKELL_BIN:Q} --make Setup -dynamic || \
-                       ${_HASKELL_BIN:Q} --make Setup -static )
+               ( ${_HASKELL_BIN:Q} ${_HASKELL_BUILD_SETUP_OPTS} --make Setup -dynamic || \
+                       ${_HASKELL_BIN:Q} ${_HASKELL_BUILD_SETUP_OPTS} --make Setup -static )
        ${RUN} ${_ULIMIT_CMD} cd ${WRKSRC:Q} && \
                ${SETENV} ${CONFIGURE_ENV} \
                        ./Setup configure ${PKG_VERBOSE:D-v} ${CONFIGURE_ARGS}