From ddca8c20935d514dd23a274f5de9422a9436b824 Mon Sep 17 00:00:00 2001
From: xaizek <xaizek@openmailbox.org>
Date: Mon, 6 Feb 2017 22:14:30 +0200
Subject: [PATCH] Add config.h with DATADIR define

The define isn't used yet, but will be in the following commits.
---
 .gitignore  | 1 +
 INSTALL.md  | 9 ++++++++-
 Makefile    | 7 +++++--
 config.h.in | 2 ++
 4 files changed, 16 insertions(+), 3 deletions(-)
 create mode 100644 config.h.in

diff --git a/.gitignore b/.gitignore
index ba32f96..f6659c6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,3 +7,4 @@
 *.o
 /uncov
 /tests/tests
+/config.h
diff --git a/INSTALL.md b/INSTALL.md
index a696f1f..9f85f65 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -1,4 +1,11 @@
-### Building ###
+### Configuring ###
+
+`config.h.in` in the root is used to produce `config.h` by default, but one can
+write custom `config.h` to change something.  There is only `DATADIR` define
+which specifies location of data after installation, make sure it accounts for
+custom `DESTDIR` when it's used.
+
+### Build ###
 
 #### Defaults ####
 
diff --git a/Makefile b/Makefile
index 59a322e..4ae0925 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 CXXFLAGS += -std=c++11 -Wall -Wextra -Werror -MMD -I$(abspath src)
-CXXFLAGS += -Wno-non-template-friend
+CXXFLAGS += -Wno-non-template-friend -include config.h
 LDFLAGS  += -g -lsqlite3 -lgit2 -lsource-highlight -lz
 LDFLAGS  += -lboost_filesystem -lboost_iostreams -lboost_program_options
 LDFLAGS  += -lboost_system
@@ -150,7 +150,10 @@ $(out_dir)/tests/tests: EXTRA_CXXFLAGS += -Wno-error=parentheses -Itests/
 $(out_dir)/tests/tests: $(tests_objects) tests/. | $(out_dirs)
 	$(CXX) -o $@ $(tests_objects) $(LDFLAGS) $(EXTRA_LDFLAGS)
 
-$(out_dir)/%.o: %.cpp | $(out_dirs)
+config.h: | config.h.in
+	cp config.h.in $@
+
+$(out_dir)/%.o: %.cpp config.h | $(out_dirs)
 	$(CXX) -o $@ -c $(CXXFLAGS) $(EXTRA_CXXFLAGS) $<
 
 $(out_dirs) $(out_dir)/docs:
diff --git a/config.h.in b/config.h.in
new file mode 100644
index 0000000..fa9af4d
--- /dev/null
+++ b/config.h.in
@@ -0,0 +1,2 @@
+// Path to data (should take DESTDIR into account).
+#define DATADIR "/usr/share/uncov"