Let's just rename the global 'state_p_value' as it will become
'state->p_value' in a following patch.

This also avoid errors when compiling with -Wshadow and makes
it safer to later move global variables into a "state" struct.

Helped-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
Reviewed-by: Stefan Beller <sbel...@google.com>
Signed-off-by: Christian Couder <chrisc...@tuxfamily.org>
---
 builtin/apply.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/builtin/apply.c b/builtin/apply.c
index fe5aebd..e133b38 100644
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -35,7 +35,7 @@ static int prefix_length = -1;
 static int newfd = -1;
 
 static int unidiff_zero;
-static int p_value = 1;
+static int state_p_value = 1;
 static int p_value_known;
 static int check_index;
 static int update_index;
@@ -872,24 +872,24 @@ static void parse_traditional_patch(const char *first, 
const char *second, struc
                q = guess_p_value(second);
                if (p < 0) p = q;
                if (0 <= p && p == q) {
-                       p_value = p;
+                       state_p_value = p;
                        p_value_known = 1;
                }
        }
        if (is_dev_null(first)) {
                patch->is_new = 1;
                patch->is_delete = 0;
-               name = find_name_traditional(second, NULL, p_value);
+               name = find_name_traditional(second, NULL, state_p_value);
                patch->new_name = name;
        } else if (is_dev_null(second)) {
                patch->is_new = 0;
                patch->is_delete = 1;
-               name = find_name_traditional(first, NULL, p_value);
+               name = find_name_traditional(first, NULL, state_p_value);
                patch->old_name = name;
        } else {
                char *first_name;
-               first_name = find_name_traditional(first, NULL, p_value);
-               name = find_name_traditional(second, first_name, p_value);
+               first_name = find_name_traditional(first, NULL, state_p_value);
+               name = find_name_traditional(second, first_name, state_p_value);
                free(first_name);
                if (has_epoch_timestamp(first)) {
                        patch->is_new = 1;
@@ -928,7 +928,7 @@ static int gitdiff_hdrend(const char *line, struct patch 
*patch)
 static void gitdiff_verify_name(const char *line, int isnull, char **name, int 
side)
 {
        if (!*name && !isnull) {
-               *name = find_name(line, NULL, p_value, TERM_TAB);
+               *name = find_name(line, NULL, state_p_value, TERM_TAB);
                return;
        }
 
@@ -938,7 +938,7 @@ static void gitdiff_verify_name(const char *line, int 
isnull, char **name, int s
                if (isnull)
                        die(_("git apply: bad git-diff - expected /dev/null, 
got %s on line %d"),
                            *name, linenr);
-               another = find_name(line, NULL, p_value, TERM_TAB);
+               another = find_name(line, NULL, state_p_value, TERM_TAB);
                if (!another || memcmp(another, *name, len + 1))
                        die((side == DIFF_NEW_NAME) ?
                            _("git apply: bad git-diff - inconsistent new 
filename on line %d") :
@@ -997,7 +997,7 @@ static int gitdiff_copysrc(const char *line, struct patch 
*patch)
 {
        patch->is_copy = 1;
        free(patch->old_name);
-       patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+       patch->old_name = find_name(line, NULL, state_p_value ? state_p_value - 
1 : 0, 0);
        return 0;
 }
 
@@ -1005,7 +1005,7 @@ static int gitdiff_copydst(const char *line, struct patch 
*patch)
 {
        patch->is_copy = 1;
        free(patch->new_name);
-       patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+       patch->new_name = find_name(line, NULL, state_p_value ? state_p_value - 
1 : 0, 0);
        return 0;
 }
 
@@ -1013,7 +1013,7 @@ static int gitdiff_renamesrc(const char *line, struct 
patch *patch)
 {
        patch->is_rename = 1;
        free(patch->old_name);
-       patch->old_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+       patch->old_name = find_name(line, NULL, state_p_value ? state_p_value - 
1 : 0, 0);
        return 0;
 }
 
@@ -1021,7 +1021,7 @@ static int gitdiff_renamedst(const char *line, struct 
patch *patch)
 {
        patch->is_rename = 1;
        free(patch->new_name);
-       patch->new_name = find_name(line, NULL, p_value ? p_value - 1 : 0, 0);
+       patch->new_name = find_name(line, NULL, state_p_value ? state_p_value - 
1 : 0, 0);
        return 0;
 }
 
@@ -1092,10 +1092,10 @@ static const char *skip_tree_prefix(const char *line, 
int llen)
        int nslash;
        int i;
 
-       if (!p_value)
+       if (!state_p_value)
                return (llen && line[0] == '/') ? NULL : line;
 
-       nslash = p_value;
+       nslash = state_p_value;
        for (i = 0; i < llen; i++) {
                int ch = line[i];
                if (ch == '/' && --nslash <= 0)
@@ -1481,8 +1481,8 @@ static int find_header(const char *line, unsigned long 
size, int *hdrsize, struc
                                               "%d leading pathname component 
(line %d)",
                                               "git diff header lacks filename 
information when removing "
                                               "%d leading pathname components 
(line %d)",
-                                              p_value),
-                                           p_value, linenr);
+                                              state_p_value),
+                                           state_p_value, linenr);
                                patch->old_name = xstrdup(patch->def_name);
                                patch->new_name = xstrdup(patch->def_name);
                        }
@@ -4461,7 +4461,7 @@ static int option_parse_include(const struct option *opt,
 static int option_parse_p(const struct option *opt,
                          const char *arg, int unset)
 {
-       p_value = atoi(arg);
+       state_p_value = atoi(arg);
        p_value_known = 1;
        return 0;
 }
-- 
2.8.3.443.gaeee61e

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