As for libc's `system', change Awk to look for `sh' in $PATH.  This patch is
only meant to be used during bootstrapping, where we don't know in advance the
absolute file name of `sh'.

--- gawk-4.1.3/io.c	2015-05-19 15:37:20.000000000 +0200
+++ gawk-4.1.3/io.c	2015-06-09 18:39:36.918414881 +0200
@@ -2025,7 +2025,7 @@
 
 		set_sigpipe_to_default();
 
-		execl("/bin/sh", "sh", "-c", command, NULL);
+		execlp("sh", "sh", "-c", command, NULL);
 		_exit(errno == ENOENT ? 127 : 126);
 
 	case -1:
@@ -2077,7 +2077,7 @@
 
 		signal(SIGPIPE, SIG_DFL);
 
-		execl("/bin/sh", "sh", "-c", command, NULL);
+		execlp("sh", "sh", "-c", command, NULL);
 		_exit(errno == ENOENT ? 127 : 126);
 
 	case -1:
@@ -2422,7 +2422,7 @@
 			fatal(_("close of pipe failed (%s)"), strerror(errno));
 		/* stderr does NOT get dup'ed onto child's stdout */
 		set_sigpipe_to_default();
-		execl("/bin/sh", "sh", "-c", str, NULL);
+		execlp("sh", "sh", "-c", str, NULL);
 		_exit(errno == ENOENT ? 127 : 126);
 	}
 #endif /* NOT __EMX__, NOT __MINGW32__ */
@@ -2659,7 +2659,7 @@
 		if (close(p[0]) == -1 || close(p[1]) == -1)
 			fatal(_("close of pipe failed (%s)"), strerror(errno));
 		set_sigpipe_to_default();
-		execl("/bin/sh", "sh", "-c", cmd, NULL);
+		execlp("sh", "sh", "-c", cmd, NULL);
 		_exit(errno == ENOENT ? 127 : 126);
 	}
 #endif /* NOT __EMX__, NOT __MINGW32__ */
ckages/tv.scm?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e'>commit</a><a href='/guix/diff/gnu/packages/tv.scm?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/packages/tv.scm'>
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<div class='path'>path: <a href='/guix/log/?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e'>root</a>/<a href='/guix/log/gnu?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e'>gnu</a>/<a href='/guix/log/gnu/packages?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e'>packages</a>/<a href='/guix/log/gnu/packages/tv.scm?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e'>tv.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/packages/tv.scm?id=9396fef40998ba6b580b2d6c5c7b774b7a6ccd1e&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2021-12-13 17:48:25 +0100'>2021-12-13</span></td><td><a href='/guix/commit/gnu/packages/tv.scm?id=8394619baceb118df92e355377fd543bb1aa501a'>gnu: Simplify package inputs.</a><span class='msg-avail'>...<span class='msg-tooltip'>This commit was obtained by running:

  ./pre-inst-env guix style

without any additional argument.
</span></span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-10-06 02:54:02 +0200'>2020-10-06</span></td><td><a href='/guix/commit/gnu/packages/tv.scm?id=6c273ee4332ff537aff05eafa276c64018eb15dc'>gnu: Fix up package copyright headers.</a></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2018-11-11 08:57:13 +0200'>2018-11-11</span></td><td><a href='/guix/commit/gnu/packages/tv.scm?id=5528b8e7885834e80e41fe876b9c501c7d95bc6a'>gnu: tvtime: Fix building with glibc@2.28.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/tvtime.scm (tvtime)[arguments]: Add custom phase to add
missing import.
</span></span></td><td>Efraim Flashner</td></tr>
<tr><td><span title='2018-03-24 19:36:03 +0300'>2018-03-24</span></td><td><a href='/guix/commit/gnu/packages/tv.scm?id=d591989b42088a358f33d6cf68f12efc2ad4403c'>gnu: tvtime: Fix build.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/tv.scm (tvtime)[native-inputs]: Add 'pkg-config' to avoid
compilation errors.
</span></span></td><td>Alex Kost</td></tr>
<tr><td><span title='2017-01-28 12:41:35 +0300'>2017-01-28</span></td><td><a href='/guix/commit/gnu/packages/tv.scm?id=1c6713465fbc3f1c0367e09ca7cb2921966cdf95'>gnu: tvtime: Update to 1.0.11.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/tv.scm (tvtime): Update to 1.0.11.
</span></span></td><td>Alex Kost</td></tr>
<tr><td><span title='2016-05-04 23:08:39 +0300'>2016-05-04</span></td><td><a href='/guix/commit/gnu/packages/tv.scm?id=af5640d1dd18328dbfec5cb11f73224efd47f1aa'>gnu: tvtime: Update to 1.0.10.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/packages/tv.scm (tvtime): Update to 1.0.10.
[source]: Remove patches.
[inputs]: Add 'alsa-lib'.
* gnu/packages/patches/tvtime-gcc41.patch,
gnu/packages/patches/tvtime-pngoutput.patch,
gnu/packages/patches/tvtime-videodev2.patch,
gnu/packages/patches/tvtime-xmltv.patch: Remove files.
* gnu/local.mk (dist_patch_DATA): Remove them.
</span></span></td><td>Alex Kost</td></tr>