1.4.1 Autoconf Macros

Common autoconf macros can be used to find the library, such as:

AC_SEARCH_LIBS([micro_benchmark_init], [mbenchmark], [...])

MicroBenchmark comes with some (experimental) macros too:

• Experimental: MICRO_BENCHMARK_CHECK_C

  Search MicroBenchmark library on some predefined routes and call AC_SUBST on the following variables:

  • MICRO_BENCHMARK_CPPFLAGS:

    Contains the compiler flags needed to find the headers of the local installation of MicroBenchmark.

  • MICRO_BENCHMARK_CFLAGS:

    Contains the compiler flags needed to compile and link a program with MicroBenchmark.

  • MICRO_BENCHMARK_LIBS:

    Contains the linker flags needed to link a program with MicroBenchmark.

  • MICRO_BENCHMARK_LTLIBS:

    Contains a reference to MicroBenchmark libtool file, when available.

• Experimental: MICRO_BENCHMARK_CHECK_CXX

  Search MicroBenchmark C++ library on some predefined routes and call AC_SUBST on the following variables:

  • MICRO_BENCHMARK_CPPFLAGS:

    Contains the compiler flags needed to find the headers of the local installation of MicroBenchmark.

  • MICRO_BENCHMARK_CXXFLAGS:

    Contains the compiler flags needed to compile and link a C++ program with MicroBenchmark.

  • MICRO_BENCHMARK_CXXLIBS:

    Contains the linker flags needed to link a program against MicroBenchmark C++ binding.

  • MICRO_BENCHMARK_CXXLTLIBS:

    Contains the reference to MicroBenchmark C++ libtool file, when available.

• Experimental: MICRO_BENCHMARK_CHECK_GUILE

  Check that the modules availability and the library version.

This could be a basic example of their usage:

configure.ac:
---

@dots{}
AS_IF([@dots{}],
 [dnl To substitute CFLAGS/LIBS/LTLIBS
  MICRO_BENCHMARK_CHECK_C
  @dots{}
  dnl To substitute CXXFLAGS/CXXLIBS/CXXLTLIBS
  MICRO_BENCHMARK_CHECK_CXX
  @dots{}
  dnl For Guile, only checks are performed
  MICRO_BENCHMARK_CHECK_GUILE
 ])
@dots{}

---

Makefile.am:
---

@dots{}
ctest_CFLAGS += $(MICRO_BENCHMARK_CFLAGS)
ctest_LIBS += $(MICRO_BENCHMARK_LIBS)
@dots{}
# For the C++ library
cpptest_CXXFLAGS += $(MICRO_BENCHMARK_CXXFLAGS)
cpptest_LIBS += $(MICRO_BENCHMARK_CXXLIBS)
@dots{}
# Or with libtool
ltctest_LDADD += $(MICRO_BENCHMARK_LTLIBS)
ltcxxlttest_LDADD += $(MICRO_BENCHMARK_CXXLTLIBS)
@dots{}

---