support clang and other compilers

config.h

@@ -1,10 +1,13 @@
 // C compiler
-const char* CC  = "gcc";
+const char* CC  = "cc";
 
 // C++ compiler
-const char* CXX = "g++";
+const char* CXX = "c++";
 
+// The compilation options are chosen with gcc in mind, but clang should also work
+// Other compilers are not tested, but may work
 // You can read about gcc options by running "man gcc"
+
 // Compiler options to use...
 
 // ...when debugging
@@ -14,7 +17,7 @@ const char* CXX = "g++";
 #define RELEASE_FLAGS "-Ofast", "-s"
 
 // ...for both C and C++
-#define CPPFLAGS  "--whole-program", "-march=native", "-Wall", "-Wextra", "-pipe"
+#define CPPFLAGS  "-fwhole-program", "-march=native", "-Wall", "-Wextra", "-pipe"
 
 // ...for C
 #define CFLAGS CPPFLAGS

install.sh

@@ -7,9 +7,10 @@ PREFIX=/usr/local
 
 
 # Compile cppipe
-options="-std=c++17 -Ofast --whole-program -march=native -DNDEBUG -Wall -Wextra -Wno-parentheses -Wno-unused-result -s -pipe"
+# The options are with gcc in mind, but should work with clang and maybe other compilers
+options="-std=c++17 -Ofast -fwhole-program -march=native -DNDEBUG -Wall -Wextra -Wno-parentheses -Wno-unused-result -s -pipe"
 # options="-std=c++17 -g"
-g++ -o cppipe $options cppipe.cpp
+c++ -o cppipe $options cppipe.cpp
 chmod 755 cppipe
 mv cppipe ${PREFIX}/bin
 

src/cppipe.cpp

@@ -14,6 +14,9 @@
 using namespace std;
 namespace fs = std::filesystem;
 
+namespace
+{
+
 struct MappedFile		// todo: move to utils
 {
 	// ~MappedFile()
@@ -55,6 +58,8 @@ fs::path src_file;
 fs::path cache_dir;
 fs::path bin;   // cache bins to avoid recompiles
 
+}
+
 int main(int argc, char* argv[])
 {
 	int src_arg = parse_args_until_src(argc, argv);
@@ -81,6 +86,9 @@ int main(int argc, char* argv[])
 	exec(run);
 }
 
+namespace
+{
+
 int parse_args_until_src(int argc, char* argv[])
 {
 	if(argc < 2)
@@ -285,3 +293,5 @@ bool is_src_file(const string_view p)
 	else
 		return false;
 }
+
+}