Some fixes in the chapters

chapters/basics/functions.md

@@ -72,14 +72,21 @@ An example of a simple function is as follows:
 
 ```cmake
 function(SIMPLE REQUIRED_ARG)
-    message(STATUS "Simple arguments: ${REQUIRED_ARG}, followed by ${ARGV}")
+    message(STATUS "Simple arguments: ${REQUIRED_ARG}, followed by ${ARGN}")
     set(${REQUIRED_ARG} "From SIMPLE" PARENT_SCOPE)
 endfunction()
 
-simple(This)
+simple(This Foo Bar)
 message("Output: ${This}")
 ```
 
+The output would be:
+
+```
+-- Simple arguments: This, followed by Foo;Bar
+Output: From SIMPLE
+```
+
 If you want positional arguments, they are listed explicitly, and all other arguments are collected in `ARGN` (`ARGV` holds all arguments, even the ones you list). You have to work around the fact that CMake does not have return values by setting variables. In the example above, you can explicitly give a variable name to set.
 
 ## Arguments

chapters/basics/programs.md

@@ -14,7 +14,7 @@ if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
                     WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                     RESULT_VARIABLE GIT_SUBMOD_RESULT)
     if(NOT GIT_SUBMOD_RESULT EQUAL "0")
-        message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
+        message(FATAL_ERROR "git submodule update --init --recursive failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
     endif()
 endif()
 ```

chapters/features/utilities.md

@@ -33,9 +33,9 @@ This is the command line for running clang-tidy, as a list (remember, a semicolo
 
 Here is a simple example of using Clang-Tidy:
 
-```bash
-cmake -S . -B build-tidy -DCMAKE_CXX_CLANG_TIDY="$(which clang-tidy);-fix"
-cmake --build build -j 1
+```term
+~/package # cmake -S . -B build-tidy -DCMAKE_CXX_CLANG_TIDY="$(which clang-tidy);-fix"
+~/package # cmake --build build -j 1
 ```
 
 The `-fix` part is optional, and will modify your source files to try to fix
@@ -66,14 +66,14 @@ include-what-you-use`.  Then, you can pass this into your build without
 modifying the source:
 
 ```term
-build # cmake -S . -B build-iwyu -DCMAKE_CXX_INCLUDE_WHAT_YOU_USE=include-what-you-use
+~/package # cmake -S . -B build-iwyu -DCMAKE_CXX_INCLUDE_WHAT_YOU_USE=include-what-you-use
 ```
 
 Finally, you can collect the output and (optionally) apply the fixes:
 
 ```term
-build # cmake --build build-iwyu 2> iwyu.out
-build # fix_includes.py < iwyu.out
+~/package # cmake --build build-iwyu 2> iwyu.out
+~/package # fix_includes.py < iwyu.out
 ```
 
 (You should check the fixes first, or touch them up after applying!)

chapters/intro/running.md

@@ -30,6 +30,7 @@ Any *one* of these commands will install:
 ~/package/build $ cmake --install . # CMake 3.15+ only
 
 # From the source directory (pick one)
+~/package $ make -C build install
 ~/package $ cmake --build build --target install
 ~/package $ cmake --install build # CMake 3.15+ only
 {% endterm %}

chapters/projects/submodule.md

@@ -21,7 +21,7 @@ if(GIT_FOUND AND EXISTS "${PROJECT_SOURCE_DIR}/.git")
                         WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
                         RESULT_VARIABLE GIT_SUBMOD_RESULT)
         if(NOT GIT_SUBMOD_RESULT EQUAL "0")
-            message(FATAL_ERROR "git submodule update --init failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
+            message(FATAL_ERROR "git submodule update --init --recursive failed with ${GIT_SUBMOD_RESULT}, please checkout submodules")
         endif()
     endif()
 endif()