Merge #88: cmake: Add bitcoin-qt to Guix scripts

6ed7dd1 fixup! cmake: Migrate Guix build scripts to CMake (Hennadii Stepanov)
fe20cc0 fixup! cmake: Add `Maintenance` module (Hennadii Stepanov)
f18ec5b fixup! build: Generate `share/toolchain.cmake` in depends (Hennadii Stepanov)

Pull request description:

  Resolves the #86 (review).

ACKs for top commit:
  TheCharlatan:
    ACK 6ed7dd1

Tree-SHA512: f586dfd596ced98e28b4d152f28a05ce722805e3565782b024d665d4a43155cc77ea392063b6c27916b64993aca7141d723e773de314a72149023ea6187b8597

cmake/module/Maintenance.cmake

@@ -48,7 +48,7 @@ function(add_maintenance_targets)
     VERBATIM
   )
 
-  foreach(target IN ITEMS bitcoind bitcoin-cli bitcoin-tx bitcoin-util bitcoin-wallet test_bitcoin bench_bitcoin)
+  foreach(target IN ITEMS bitcoind bitcoin-qt bitcoin-cli bitcoin-tx bitcoin-util bitcoin-wallet test_bitcoin bench_bitcoin)
     if(TARGET ${target})
       # Not using the TARGET_FILE generator expression because it creates excessive
       # target-level dependencies in the following custom targets.

contrib/guix/libexec/build.sh

@@ -182,9 +182,7 @@ esac
 ####################
 
 # Build the depends tree, overriding variables that assume multilib gcc
-# TODO: Drop NO_QT=1
 make -C depends --jobs="$JOBS" HOST="$HOST" \
-                                   NO_QT=1 \
                                    ${V:+V=1} \
                                    ${SOURCES_PATH+SOURCES_PATH="$SOURCES_PATH"} \
                                    ${BASE_CACHE+BASE_CACHE="$BASE_CACHE"} \

depends/toolchain.cmake.in

@@ -82,6 +82,10 @@ set(CMAKE_OBJCOPY "@OBJCOPY@")
 set(CMAKE_INSTALL_NAME_TOOL "@INSTALL_NAME_TOOL@")
 set(OTOOL "@OTOOL@")
 
+# Using our own built dependencies should not be
+# affected by a potentially random environment.
+set(CMAKE_FIND_USE_CMAKE_ENVIRONMENT_PATH OFF)
+
 set(CMAKE_FIND_ROOT_PATH "@depends_prefix@")
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)