[gnuastro-commits] master e00e0991: Book: minor edits in the Makefile extensions

[Mohammad Akhlaghi]

branch: master
commit e00e0991c3ae3ccb63b31eb41ec402f132f6d8f4
Author: Mohammad Akhlaghi <mohammad@akhlaghi.org>
Commit: Mohammad Akhlaghi <mohammad@akhlaghi.org>

    Book: minor edits in the Makefile extensions
    
    Until now, there were a few typos or non-clear statements in the
    introduction of this section.
    
    With this commit, they have been corrected to make the text more readable.
---
 doc/gnuastro.texi | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/doc/gnuastro.texi b/doc/gnuastro.texi
index 45307026..40e9e331 100644
--- a/doc/gnuastro.texi
+++ b/doc/gnuastro.texi
@@ -35805,7 +35805,7 @@ This option is useful when the user wants to obtain the 
scattered light field gi
 @url{https://en.wikipedia.org/wiki/Make_(software), Make} is a build 
automation tool.
 It can greatly help manage your analysis workflow, even very complex projects 
with thousands of files and hundreds of processing steps.
 In this book, we have discussed Make previously in the context of 
parallelization (see @ref{How to run simultaneous operations}).
-It has also been used in
+For example, @url{http://maneage.org,Maneage} uses Make to organize complex 
and reproducible workflows, see Akhlaghi et al. 
@url{https://arxiv.org/abs/2006.03018,2021}.
 
 @cindex GNU Make
 GNU Make is the most common and powerful implementation of Make, with many 
unique additions to the core POSIX standard of Make.
@@ -35858,7 +35858,7 @@ After you have loaded Gnuastro's shared library for 
Makefiles within your Makefi
 For instructions on how to load Gnuastro's Make functions, see @ref{Loading 
the Gnuastro Make functions}.
 
 There are two types of Make functions in Gnuastro's Make extensions:
-1) Basic operations on text which more general than astronomy or Gnuastro, see 
@ref{Text functions for Makefiles}).
+1) Basic operations on text which is more general than astronomy or Gnuastro, 
see @ref{Text functions for Makefiles}).
 2) Operations that are directly related to astronomy (mostly FITS files) and 
Gnuastro, see @ref{Astronomy functions for Makefiles}).
 
 @cartouche
@@ -35880,8 +35880,8 @@ For more, see the 
@url{https://www.gnu.org/software/make/manual/html_node/Flavor
 @node Text functions for Makefiles, Astronomy functions for Makefiles, 
Makefile functions of Gnuastro, Makefile functions of Gnuastro
 @subsection Text functions for Makefiles
 
-The functions described below are generic (not limited to astronomy/FITS) 
functions that operate on plain text.
-You can see these as functions that should have been implemented in GNU Make 
itself.
+The functions described below operate on simple strings (plain text).
+They are therefore generic (not limited to astronomy/FITS), but because they 
are commonly necessary in astronomical data analysis pipelines and are not 
available anywhere else, we have included them in Gnuastro.
 The names of these functions start with @code{ast-text-*} and each has a fully 
working example to demonstrate its usage.
 
 @table @code
@@ -35942,10 +35942,10 @@ load /usr/local/lib/libgnuastro_make.so
 # sub-sub-components (numeric).
 subids = a b c d
 subsubids = 1 2 3 4 5 6 7
-subs=$(foreach s, $(subids), $(s).fits)
-subsubs=$(foreach s, $(subids), \
-          $(foreach ss, $(subsubids), \
-            $(s)-$(ss).fits))
+subs := $(foreach s, $(subids), $(s).fits)
+subsubs := $(foreach s, $(subids), \
+             $(foreach ss, $(subsubids), \
+               $(s)-$(ss).fits))
 
 # Build the sub-components:
 $(subsubs): %.fits: $$(ast-text-prev-in-list \