Merge branch 'ps/no-writable-strings'

Building with "-Werror -Wwrite-strings" is now supported.

* ps/no-writable-strings: (27 commits)
  config.mak.dev: enable `-Wwrite-strings` warning
  builtin/merge: always store allocated strings in `pull_twohead`
  builtin/rebase: always store allocated string in `options.strategy`
  builtin/rebase: do not assign default backend to non-constant field
  imap-send: fix leaking memory in `imap_server_conf`
  imap-send: drop global `imap_server_conf` variable
  mailmap: always store allocated strings in mailmap blob
  revision: always store allocated strings in output encoding
  remote-curl: avoid assigning string constant to non-const variable
  send-pack: always allocate receive status
  parse-options: cast long name for OPTION_ALIAS
  http: do not assign string constant to non-const field
  compat/win32: fix const-correctness with string constants
  pretty: add casts for decoration option pointers
  object-file: make `buf` parameter of `index_mem()` a constant
  object-file: mark cached object buffers as const
  ident: add casts for fallback name and GECOS
  entry: refactor how we remove items for delayed checkouts
  line-log: always allocate the output prefix
  line-log: stop assigning string constant to file parent buffer
  ...

1 files changed, 1 insertions, 1 deletions

diff --git a/compat/regex/regcomp.c b/compat/regex/regcomp.c
index 2bc0f1187a..6c5d455e92 100644
--- a/compat/regex/regcomp.c
+++ b/compat/regex/regcomp.c
@@ -848,7 +848,7 @@ init_dfa (re_dfa_t *dfa, size_t pat_len)
 {
   unsigned int table_size;
 #ifndef _LIBC
-  char *codeset_name;
+  const char *codeset_name;
 #endif
 
   memset (dfa, '\0', sizeof (re_dfa_t));