configure.ac: Workaround gtest-config not being installed.

Upstream googletest is dropping autotools support and the cmake
installer does not provide gtest-config.

BUG=chromium:940320
TEST=FEATURES=test emerge-lakitu google-breakpad

Change-Id: Icd51ffc48b39c24eebc27cc023e74a77e592de3e
Reviewed-on: https://chromium-review.googlesource.com/c/breakpad/breakpad/+/1660893
Reviewed-by: Mike Frysinger <vapier@chromium.org>

Makefile.in

@@ -1978,11 +1978,9 @@ ECHO_T = @ECHO_T@
 EGREP = @EGREP@
 EXEEXT = @EXEEXT@
 GMOCK_CFLAGS = @GMOCK_CFLAGS@
-GMOCK_CONFIG = @GMOCK_CONFIG@
 GMOCK_LIBS = @GMOCK_LIBS@
 GREP = @GREP@
 GTEST_CFLAGS = @GTEST_CFLAGS@
-GTEST_CONFIG = @GTEST_CONFIG@
 GTEST_LIBS = @GTEST_LIBS@
 HAVE_CXX11 = @HAVE_CXX11@
 INSTALL = @INSTALL@
@@ -2062,7 +2060,6 @@ pdfdir = @pdfdir@
 prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
-runstatedir = @runstatedir@
 sbindir = @sbindir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@

configure

@@ -634,10 +634,8 @@ SELFTEST_FALSE
 SELFTEST_TRUE
 GTEST_LIBS
 GTEST_CFLAGS
-GTEST_CONFIG
 GMOCK_LIBS
 GMOCK_CFLAGS
-GMOCK_CONFIG
 SYSTEM_TEST_LIBS_FALSE
 SYSTEM_TEST_LIBS_TRUE
 DISABLE_TOOLS_FALSE
@@ -795,10 +793,8 @@ CPP
 CXX
 CXXFLAGS
 CCC
-GMOCK_CONFIG
 GMOCK_CFLAGS
 GMOCK_LIBS
-GTEST_CONFIG
 GTEST_CFLAGS
 GTEST_LIBS
 RUST_DEMANGLE_CFLAGS
@@ -1464,13 +1460,9 @@ Some influential environment variables:
   CPP         C preprocessor
   CXX         C++ compiler command
   CXXFLAGS    C++ compiler flags
-  GMOCK_CONFIG
-              Path to gmock-config script
   GMOCK_CFLAGS
               Compiler flags for gmock
   GMOCK_LIBS  Linker flags for gmock
-  GTEST_CONFIG
-              Path to gtest-config script
   GTEST_CFLAGS
               Compiler flags for gtest
   GTEST_LIBS  Linker flags for gtest
@@ -7632,197 +7624,11 @@ fi
 
 
 
-
-
 if test x$system_test_libs = xtrue; then
-  if test -n "$ac_tool_prefix"; then
+  : "${GMOCK_CFLAGS:=-pthread}"
-  # Extract the first word of "${ac_tool_prefix}gmock-config", so it can be a program name with args.
+  : "${GMOCK_LIBS:=-lgmock -lgtest -pthread -lpthread}"
-set dummy ${ac_tool_prefix}gmock-config; ac_word=$2
+  : "${GTEST_CFLAGS:=-pthread}"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+  : "${GTEST_LIBS:=-lgtest -pthread -lpthread}"
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_GMOCK_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$GMOCK_CONFIG"; then
-  ac_cv_prog_GMOCK_CONFIG="$GMOCK_CONFIG" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_GMOCK_CONFIG="${ac_tool_prefix}gmock-config"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-GMOCK_CONFIG=$ac_cv_prog_GMOCK_CONFIG
-if test -n "$GMOCK_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GMOCK_CONFIG" >&5
-$as_echo "$GMOCK_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_GMOCK_CONFIG"; then
-  ac_ct_GMOCK_CONFIG=$GMOCK_CONFIG
-  # Extract the first word of "gmock-config", so it can be a program name with args.
-set dummy gmock-config; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_GMOCK_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_GMOCK_CONFIG"; then
-  ac_cv_prog_ac_ct_GMOCK_CONFIG="$ac_ct_GMOCK_CONFIG" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct_GMOCK_CONFIG="gmock-config"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_GMOCK_CONFIG=$ac_cv_prog_ac_ct_GMOCK_CONFIG
-if test -n "$ac_ct_GMOCK_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_GMOCK_CONFIG" >&5
-$as_echo "$ac_ct_GMOCK_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_GMOCK_CONFIG" = x; then
-    GMOCK_CONFIG=""
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    GMOCK_CONFIG=$ac_ct_GMOCK_CONFIG
-  fi
-else
-  GMOCK_CONFIG="$ac_cv_prog_GMOCK_CONFIG"
-fi
-
-  if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}gtest-config", so it can be a program name with args.
-set dummy ${ac_tool_prefix}gtest-config; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_GTEST_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$GTEST_CONFIG"; then
-  ac_cv_prog_GTEST_CONFIG="$GTEST_CONFIG" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_GTEST_CONFIG="${ac_tool_prefix}gtest-config"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-GTEST_CONFIG=$ac_cv_prog_GTEST_CONFIG
-if test -n "$GTEST_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GTEST_CONFIG" >&5
-$as_echo "$GTEST_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_GTEST_CONFIG"; then
-  ac_ct_GTEST_CONFIG=$GTEST_CONFIG
-  # Extract the first word of "gtest-config", so it can be a program name with args.
-set dummy gtest-config; ac_word=$2
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if ${ac_cv_prog_ac_ct_GTEST_CONFIG+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_GTEST_CONFIG"; then
-  ac_cv_prog_ac_ct_GTEST_CONFIG="$ac_ct_GTEST_CONFIG" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-    for ac_exec_ext in '' $ac_executable_extensions; do
-  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
-    ac_cv_prog_ac_ct_GTEST_CONFIG="gtest-config"
-    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-  done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_GTEST_CONFIG=$ac_cv_prog_ac_ct_GTEST_CONFIG
-if test -n "$ac_ct_GTEST_CONFIG"; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_GTEST_CONFIG" >&5
-$as_echo "$ac_ct_GTEST_CONFIG" >&6; }
-else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_GTEST_CONFIG" = x; then
-    GTEST_CONFIG=""
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    GTEST_CONFIG=$ac_ct_GTEST_CONFIG
-  fi
-else
-  GTEST_CONFIG="$ac_cv_prog_GTEST_CONFIG"
-fi
-
-  GMOCK_CFLAGS=`$GMOCK_CONFIG --cppflags --cxxflags`
-  GMOCK_LIBS=`$GMOCK_CONFIG --ldflags --libs`
-  GTEST_CFLAGS=`$GTEST_CONFIG --cppflags --cxxflags`
-  GTEST_LIBS=`$GTEST_CONFIG --ldflags --libs`
 fi
 
 # Check whether --enable-selftest was given.

configure.ac

@@ -187,19 +187,15 @@ AC_ARG_ENABLE(system-test-libs,
               [system_test_libs=false])
 AM_CONDITIONAL(SYSTEM_TEST_LIBS, test x$system_test_libs = xtrue)
 
-AC_ARG_VAR([GMOCK_CONFIG], [Path to gmock-config script])
 AC_ARG_VAR([GMOCK_CFLAGS], [Compiler flags for gmock])
 AC_ARG_VAR([GMOCK_LIBS], [Linker flags for gmock])
-AC_ARG_VAR([GTEST_CONFIG], [Path to gtest-config script])
 AC_ARG_VAR([GTEST_CFLAGS], [Compiler flags for gtest])
 AC_ARG_VAR([GTEST_LIBS], [Linker flags for gtest])
 if test x$system_test_libs = xtrue; then
-  AC_CHECK_TOOL([GMOCK_CONFIG], [gmock-config])
+  : "${GMOCK_CFLAGS:=-pthread}"
-  AC_CHECK_TOOL([GTEST_CONFIG], [gtest-config])
+  : "${GMOCK_LIBS:=-lgmock -lgtest -pthread -lpthread}"
-  GMOCK_CFLAGS=`$GMOCK_CONFIG --cppflags --cxxflags`
+  : "${GTEST_CFLAGS:=-pthread}"
-  GMOCK_LIBS=`$GMOCK_CONFIG --ldflags --libs`
+  : "${GTEST_LIBS:=-lgtest -pthread -lpthread}"
-  GTEST_CFLAGS=`$GTEST_CONFIG --cppflags --cxxflags`
-  GTEST_LIBS=`$GTEST_CONFIG --ldflags --libs`
 fi
 
 AC_ARG_ENABLE(selftest,