Fix handling of install prefix

Fall back to default cmake handling of the installation prefix.  It was
being overriden with custom cmake rules, which didn't work smoothly
with other normal uses of CMAKE_INSTALL_PREFIX and DESTDIR when using
cmake.

2 files changed, 4 insertions, 8 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3c86bdb..8608569 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -18,10 +18,6 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 # Handle cmake -D command line options
 
-if (DESTDIR)
-    set(INSTALLDEST ${DESTDIR})
-endif (DESTDIR)
-
 if (NOT DEFINED ENABLE_COLOR)
     set(ENABLE_COLOR 1)
 elseif(ENABLE_COLOR EQUAL 0)
@@ -281,12 +277,12 @@ endif(${MACHINE} STREQUAL freebsd)
 install(
     PROGRAMS
     ${CMAKE_BINARY_DIR}/${PROJECT_NAME}
-    DESTINATION "${INSTALLDEST}/bin"
+    DESTINATION "bin"
 )
 install(
     FILES
     ${CMAKE_BINARY_DIR}/pg_top.1
-    DESTINATION "${INSTALLDEST}/share/man/man1"
+    DESTINATION "share/man/man1"
 )
 
 # CPack rules for creating distribution files.
diff --git a/INSTALL b/INSTALL
index 7c268cb..08016d1 100644
--- a/INSTALL
+++ b/INSTALL
@@ -13,9 +13,9 @@ cmake [options] CMakeLists.txt
 
 options:
 
-    -DDESTDIR=PREFIX
+    -DCMAKE_INSTALL_PREFIX=PREFIX
 
-    Install files in PREFIX.
+    Install files in PREFIX.  Default is '/usr/local'.
 
     -DENABLE_COLOR=0