1Masquerade as Linux to enable certain build options.
2Always use pthread even if feature detection is disabled.
3
4--- GNUmakefile.orig	2022-08-07 19:52:03 UTC
5+++ GNUmakefile
6@@ -70,7 +70,7 @@ endif
7   SYSTEMX := $(shell uname -s 2>/dev/null)
8 endif
9
10-IS_LINUX := $(shell echo "$(SYSTEMX)" | $(GREP) -i -c "Linux")
11+IS_LINUX := $(shell echo "$(SYSTEMX)" | $(GREP) -i -c -E "Linux|FreeBSD")
12 IS_HURD := $(shell echo "$(SYSTEMX)" | $(GREP) -i -c -E "GNU|Hurd")
13 IS_MINGW := $(shell echo "$(SYSTEMX)" | $(GREP) -i -c "MinGW")
14 IS_CYGWIN := $(shell echo "$(SYSTEMX)" | $(GREP) -i -c "Cygwin")
15@@ -848,7 +848,7 @@ endif
16
17 # Use -pthread whenever it is available. See http://www.hpl.hp.com/techreports/2004/HPL-2004-209.pdf
18 #   http://stackoverflow.com/questions/2127797/gcc-significance-of-pthread-flag-when-compiling
19-ifeq ($(DETECT_FEATURES),1)
20+ifeq (1,1)
21  ifeq ($(XLC_COMPILER),1)
22   ifeq ($(findstring -qthreaded,$(CXXFLAGS)),)
23    TPROG = TestPrograms/test_pthreads.cpp
24