From 5b9f78d69ccf189bebe894b1921e34417103a046 Mon Sep 17 00:00:00 2001
From: Cory Fields <cory-nospam-@coryfields.com>
Date: Mon, 29 Sep 2014 15:26:31 -0400
Subject: [PATCH] build: Fix OSX build when using Homebrew and qt5

Qt5 is bottled, so configure won't find it without some help. Use
brew to find out its prefix.

Also, qt5 added the host_bins variable to pkg-config, use it.
---
 configure.ac         | 25 +++++++++++++++++++------
 src/m4/bitcoin_qt.m4 |  6 ++++++
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/configure.ac b/configure.ac
index 1c004cf4a4..7df52f6e77 100644
--- a/configure.ac
+++ b/configure.ac
@@ -232,12 +232,25 @@ case $host in
 
        AC_CHECK_PROG([BREW],brew, brew)
        if test x$BREW = xbrew; then
-         dnl add default homebrew paths
-         openssl_prefix=`$BREW --prefix openssl`
-         bdb_prefix=`$BREW --prefix berkeley-db4`
-         export PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
-         CPPFLAGS="$CPPFLAGS -I$bdb_prefix/include"
-         LIBS="$LIBS -L$bdb_prefix/lib"
+         dnl These Homebrew packages may be bottled, meaning that they won't be found
+         dnl in expected paths because they may conflict with system files. Ask
+         dnl Homebrew where each one is located, then adjust paths accordingly.
+         dnl It's safe to add these paths even if the functionality is disabled by
+         dnl the user (--without-wallet or --without-gui for example).
+
+         openssl_prefix=`$BREW --prefix openssl 2>/dev/null`
+         bdb_prefix=`$BREW --prefix berkeley-db4 2>/dev/null`
+         qt5_prefix=`$BREW --prefix qt5 2>/dev/null`
+         if test x$openssl_prefix != x; then
+           export PKG_CONFIG_PATH="$openssl_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
+         fi
+         if test x$bdb_prefix != x; then
+           CPPFLAGS="$CPPFLAGS -I$bdb_prefix/include"
+           LIBS="$LIBS -L$bdb_prefix/lib"
+         fi
+         if test x$qt5_prefix != x; then
+           export PKG_CONFIG_PATH="$qt5_prefix/lib/pkgconfig:$PKG_CONFIG_PATH"
+         fi
        fi
      else
        case $build_os in
diff --git a/src/m4/bitcoin_qt.m4 b/src/m4/bitcoin_qt.m4
index e71ecd7172..20fead2c1e 100644
--- a/src/m4/bitcoin_qt.m4
+++ b/src/m4/bitcoin_qt.m4
@@ -94,6 +94,12 @@ AC_DEFUN([BITCOIN_QT_CONFIGURE],[
     BITCOIN_QT_CHECK([_BITCOIN_QT_FIND_LIBS_WITHOUT_PKGCONFIG])
   fi
 
+  if test x$use_pkgconfig$qt_bin_path = xyes; then
+    if test x$bitcoin_qt_got_major_vers = x5; then
+      qt_bin_path="`$PKG_CONFIG --variable=host_bins Qt5Core 2>/dev/null`"
+    fi
+  fi
+
   BITCOIN_QT_PATH_PROGS([MOC], [moc-qt${bitcoin_qt_got_major_vers} moc${bitcoin_qt_got_major_vers} moc], $qt_bin_path)
   BITCOIN_QT_PATH_PROGS([UIC], [uic-qt${bitcoin_qt_got_major_vers} uic${bitcoin_qt_got_major_vers} uic], $qt_bin_path)
   BITCOIN_QT_PATH_PROGS([RCC], [rcc-qt${bitcoin_qt_got_major_vers} rcc${bitcoin_qt_got_major_vers} rcc], $qt_bin_path)