a few simple cmake examples

LibraryAndExecutable/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8)
+
+project(app_project)
+
+add_library(hello SHARED hello.cc)
+
+add_executable(myapp main.cc)
+target_link_libraries(myapp hello)
+
+set(CMAKE_INSTALL_PREFIX _install)
+install(TARGETS hello DESTINATION lib)
+install(FILES hello.h DESTINATION include)
+install(TARGETS myapp DESTINATION bin)

LibraryAndExecutable/hello.cc

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+#include "hello.h"
+
+#include <iostream>
+
+void hello() {
+  std::cout<<"hello world!"<<std::endl;
+}

LibraryAndExecutable/hello.h

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+#include <iostream>
+
+void hello();

LibraryAndExecutable/main.cc

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+// A simple program that computes the square root of a number
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "hello.h"
+
+int main (int argc, char *argv[])
+{
+  if (argc < 2)
+    {
+    fprintf(stdout,"Usage: %s number\n",argv[0]);
+    return 1;
+    }
+  double inputValue = atof(argv[1]);
+  double outputValue = sqrt(inputValue);
+  fprintf(stdout,"The square root of %g is %g\n",
+          inputValue, outputValue);
+
+  hello();
+  return 0;
+}

SimpleExecutable/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8)
+
+project(app_project)
+
+add_executable(myapp main.cc)
+set(CMAKE_INSTALL_PREFIX _install)
+install(TARGETS myapp DESTINATION bin)

SimpleExecutable/hello.h

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+#include <iostream>
+
+void hello();

SimpleExecutable/main.cc

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+// A simple program that computes the square root of a number
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+// #include "hello.h"
+
+int main (int argc, char *argv[])
+{
+  if (argc < 2)
+    {
+    fprintf(stdout,"Usage: %s number\n",argv[0]);
+    return 1;
+    }
+  double inputValue = atof(argv[1]);
+  double outputValue = sqrt(inputValue);
+  fprintf(stdout,"The square root of %g is %g\n",
+          inputValue, outputValue);
+
+  // hello();
+  return 0;
+}

SourceOrganized/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8)
+
+project(hello)
+
+set(hello_INCLUDE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/include)
+
+include_directories(${hello_INCLUDE_DIR})
+add_executable(test_hello main.cc)
+target_link_libraries(test_hello hello)
+
+set(CMAKE_INSTALL_PREFIX _install)
+install(TARGETS test_hello DESTINATION bin)
+
+add_subdirectory(src)

SourceOrganized/include/hello.h

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+#include <iostream>
+
+void hello();

SourceOrganized/main.cc

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+// A simple program that computes the square root of a number
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+#include "hello.h"
+
+int main (int argc, char *argv[])
+{
+  if (argc < 2)
+    {
+    fprintf(stdout,"Usage: %s number\n",argv[0]);
+    return 1;
+    }
+  double inputValue = atof(argv[1]);
+  double outputValue = sqrt(inputValue);
+  fprintf(stdout,"The square root of %g is %g\n",
+          inputValue, outputValue);
+
+  hello();
+  return 0;
+}

SourceOrganized/src/CMakeLists.txt

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+cmake_minimum_required(VERSION 2.8)
+
+project(lib_hello)
+
+add_library(hello SHARED hello.cc)
+
+install(TARGETS hello DESTINATION lib)
+install(FILES ${hello_INCLUDE_DIR}/hello.h DESTINATION include)

SourceOrganized/src/hello.cc

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+#include "hello.h"
+
+#include <iostream>
+
+void hello() {
+  std::cout<<"hello world!"<<std::endl;
+}