Configuration

mkhpack has no runtime configuration. All configuration is at build time, via Makefile variables.

Build-Time Configuration

Compiler and tool paths (`Makefile.inc`)

Variable	Default	Purpose
`CC`	`/usr/bin/gcc`	C compiler
`AR`	`/usr/bin/ar`	Archive tool for static libraries
`CP`	`/bin/cp`	File copy command
`CFLAGS`	`-Wall`	Compiler warning flags
`OBJ_CFLAGS`	`-fPIC -Wl,--relocatable`	Position-independent code flags for shared library objects

To override, edit Makefile.inc or pass values on the command line:

make CC=/usr/bin/clang CFLAGS="-Wall -O2"

Version and install paths (`Makefile`)

Variable	Default	Purpose
`VERSION`	`2.0.0`	Library version; determines SONAME and tarball names
`PREFIX`	`/usr/local`	Installation prefix (overridable via environment or command line)
`DESTDIR`	(empty)	Staging directory for packaging (prepended to all install paths)

Benchmark harness (`Makefile`)

Variable	Default	Alternative
`BENCHLIB`	`benchmark-custom`	`benchmark-gettime`
`BENCHFLAGS`	`-Wl,--no-as-needed`	`-Wl,--no-as-needed -Wl,-lrt`

The default harness (benchmark-custom) uses the x86 RDTSC instruction for cycle-accurate timing. The alternative (benchmark-gettime) uses POSIX clock_gettime and may be more portable.

pkg-config

After installation, consumers can discover compiler and linker flags via pkg-config. The template is mkhpack.pc.in; the build substitutes @PREFIX@ and @VERSION@ to produce lib/mkhpack.pc.

pkg-config --cflags mkhpack    # → -I/usr/local/include
pkg-config --libs mkhpack      # → -L/usr/local/lib -lmkhpack

Installed File Layout

After make install PREFIX=/usr/local:

/usr/local/
  include/
    mkhpack.h
  lib/
    libmkhpack.so.2.0.0      Versioned shared library
    libmkhpack.so.2           SONAME symlink
    libmkhpack.so             Development symlink
    libmkhpack.a              Static library
    pkgconfig/
      mkhpack.pc              pkg-config metadata

mk-hpack